Farooq M, Wahid A, Kobayashi N, Fujita D, Basra SMA: Plant drought stress: effects, mechanisms and management. Agron Sustain Dev. 2009, 29: 185-212. 10.1051/agro:2008021.
Article
Google Scholar
Lafitte HR, Li ZK, Vijayakumara CHM, Gao YM, Shi Y, Xu JL, Fu BY, Yu SB, Ali AJ, Domingo J, Maghirang R, Torres R, Mackill D: Improvement of rice drought tolerance through backcross breeding: evaluation of donors and selection in drought nurseries. Field Crops Res. 2006, 97: 77-86. 10.1016/j.fcr.2005.08.017.
Article
Google Scholar
Hao W, Lin HX: Toward understanding genetic mechanisms of complex traits in rice. J Genet Genomics. 2010, 37: 653-666. 10.1016/S1673-8527(09)60084-9.
Article
CAS
PubMed
Google Scholar
Millan T, Clarke H, Siddique K, Buhariwalla H, Gaur P, Kumar J, Gil J, Kahl G, Winter P: Chickpea molecular breeding: new tools and concepts. Euphytica. 2006, 147: 81-103. 10.1007/s10681-006-4261-4.
Article
Google Scholar
Price AH, Cairns JE, Horton P, Jones HG, Griffiths H: Linking drought-resistance mechanisms to drought avoidance in upland rice using a QTL approach: progress and new opportunities to integrate stomatal and mesophyll responses. J Exp Bot. 2002, 53: 989-1004. 10.1093/jexbot/53.371.989.
Article
CAS
PubMed
Google Scholar
Krasensky J, Jonak C: Drought, salt, and temperature stress-induced metabolic rearrangements and regulatory networks. J Exp Bot. 2012, 63: 1593-1608. 10.1093/jxb/err460.
Article
CAS
PubMed Central
PubMed
Google Scholar
Schroeder JI, Allen GJ, Hugouvieux V, Kwak JM, Waner D: Guard cell signal transduction. Annu Rev Plant Physiol Plant Mol Biol. 2001, 52: 627-658. 10.1146/annurev.arplant.52.1.627.
Article
CAS
PubMed
Google Scholar
Zhu JK: Salt and drought stress signal transduction in plants. Ann Rev Plant Biol. 2002, 53: 247-273. 10.1146/annurev.arplant.53.091401.143329.
Article
CAS
Google Scholar
Fan LM, Zhao Z, Assmann SM: Guard cells: a dynamic signaling model. Curr Opin Plant Biol. 2004, 7: 537-546. 10.1016/j.pbi.2004.07.009.
Article
CAS
PubMed
Google Scholar
McAinsh MR, Clayton H, Mansfield TA, Hetherington AM: Changes in stomatal behavior and guard cell cytosolic free calcium in response to oxidative stress. Plant Physiol. 1996, 111: 1031-1042.
CAS
PubMed Central
PubMed
Google Scholar
Pei ZM, Murata Y, Benning G, Thomine S, Klusener B, Allen GJ, Grill E, Schroeder JI: Calcium channels activated by hydrogen peroxide mediate abscisic acid signalling in guard cells. Nature. 2000, 406: 731-734. 10.1038/35021067.
Article
CAS
PubMed
Google Scholar
Kohler B, Hills A, Blatt MR: Control of guard cell ion channels by hydrogen peroxide and abscisic acid indicates their action through alternate signaling pathways. Plant Physiol. 2003, 131: 385-388. 10.1104/pp.016014.
Article
CAS
PubMed Central
PubMed
Google Scholar
Bright J, Desikan R, Hancock JT, Weir IS, Neill SJ: ABA induced NO generation and stomatal closure in Arabidopsis are dependent on H2O2 synthesis. Plant J. 2006, 45: 113-122. 10.1111/j.1365-313X.2005.02615.x.
Article
CAS
PubMed
Google Scholar
Hamilton DW, Hills A, Kohler B, Blatt MR: Ca2+ channels at the plasma membrane of stomatal guard cells are activated by hyperpolarization and abscisic acid. Proc Natl Acad Sci U S A. 2000, 97: 4967-4972. 10.1073/pnas.080068897.
Article
CAS
PubMed Central
PubMed
Google Scholar
Creelman RA, Mullet JE: Jasmonic acid distribution and action in plants: regulation during development and response to biotic and abiotic stress. Proc Natl Acad Sci U S A. 1995, 92: 4114-4119. 10.1073/pnas.92.10.4114.
Article
CAS
PubMed Central
PubMed
Google Scholar
Akter N, Sobahan MA, Uraji M, Ye WX, Hossain MA, Mori IC, Nakamura Y, Murata Y: Effects of depletion of glutathione on abscisic acid and methyl jasmonate-induced stomatal closure in Arabidopsis thaliana. Biosci Biotechnol Biochem. 2012, 76: 2032-2037. 10.1271/bbb.120384.
Article
CAS
PubMed
Google Scholar
Daszkowska-Golec A, Szarejko I: Open or close the gate – stomata action under the control of phytohormones in drought stress conditions. Front Plant Sci. 2013, doi:10.3389/fpls.2013.00138
Google Scholar
Phelix CF, Feltus FA: Plant stress biomarkers from biosimulations: the Transcriptome-To-Metabolome™ (TTM™) technology - effects of drought stress on rice. Plant Biol. 2014, doi:10.1111/plb.12221
Google Scholar
Colebrook EH, Thomas SG, Phillips AL, Hedden P: The role of gibberellin signalling in plant responses to abiotic stress. J Exp Biol. 2014, 217: 67-75. 10.1242/jeb.089938.
Article
CAS
PubMed
Google Scholar
Shinozaki K, Yamaguchi-Shinozaki K: Gene networks involved in drought stress response and tolerance. J Exp Bot. 2007, 58: 221-227.
Article
CAS
PubMed
Google Scholar
Zhou J, Wang X, Jiao Y, Qin Y, Liu X, He K, Chen C, Ma L, Wang J, Xiong L, Zhang Q, Fan L, Deng XW: Global genome expression analysis of rice in response to drought and high-salinity stresses in shoot, flag leaf, and panicle. Plant Mol Biol. 2007, 63: 591-608. 10.1007/s11103-006-9111-1.
Article
CAS
PubMed Central
PubMed
Google Scholar
Degenkolbe T, Do PT, Zuther E, Repsilber D, Walther D, Hincha DK, Kohl KI: Expression profiling of rice cultivars differing in their tolerance to long-term drought stress. Plant Mol Biol. 2009, 69: 133-153. 10.1007/s11103-008-9412-7.
Article
CAS
PubMed Central
PubMed
Google Scholar
Wang D, Pan YJ, Zhao XQ, Zhu LH, Fu BY, Li ZK: Genome-wide temporal-spatial gene expression profiling of drought responsiveness in rice. BMC Genomics. 2011, 12: 149-10.1186/1471-2164-12-149.
Article
PubMed Central
PubMed
Google Scholar
Moumeni A, Satoh K, Kondoh H, Asano T, Hosaka A, Venuprasad R, Serraj R, Kumar A, Leung H, Kikuchi S: Comparative analysis of root transcriptome profiles of two pairs of drought-tolerant and susceptible rice near-isogenic lines under different drought stress. BMC Plant Biol. 2011, 11: 174-10.1186/1471-2229-11-174.
Article
CAS
PubMed Central
PubMed
Google Scholar
Gong Y, Rao LQ, Yu DQ: Abiotic Stress in Plants. Chemistry "Agricultural Chemistry". Chapter 6. Edited by: Stoytcheva M, Zlatev R. 2013, doi:10.5772/55865
Google Scholar
Li ZC, Mu P, Li CP, Zhang HL, Li ZK, Gao YM, Wang XK: QTL mapping of root traits in a doubled haploid population from a cross between upland and lowland japonica rice in three environments. Theor Appl Genet. 2005, 110: 1244-1252. 10.1007/s00122-005-1958-z.
Article
CAS
PubMed
Google Scholar
David TS, Henriques MO, Kurz-Besson C, Nunes J, Valente F, Vaz M, Pereira JS, Siegwolf R, Chaves MM, Gazarini LC, David JS: Water use strategies in two co-occurring Mediterranean evergreen oaks: surviving the summer drought. Tree Physiol. 2007, 27: 793-803. 10.1093/treephys/27.6.793.
Article
CAS
PubMed
Google Scholar
Kadkhodaie A, Razmjoo J, Zahedi M: Peroxidase, Ascorbate Peroxidase and Catalase activities in Drought Sensitive, Intermediate and Resistance Sesame (Sesamum indicum L.) Genotypes. Int J Agron Plant Prod. 2013, 4: 3012-3021.
Google Scholar
Yun KY, Park MR, Mohanty B, Herath V, Xu F, Mauleon R, Wijaya E, Bajic VB, Bruskiewich R, De los reyes BG: Transcriptional regulatory network triggered by oxidative signals configures the early response mechanisms of japonica rice to chilling stress. BMC Plant Biol. 2010, 10: 16-10.1186/1471-2229-10-16.
Article
PubMed Central
PubMed
Google Scholar
Zhang T, Zhao XQ, Wang WS, Pan YJ, Huang LY, Liu XY, Zong Y, Zhu LH, Yang DC, Fu BY: Comparative transcriptome profiling of chilling stress responsiveness in two contrasting rice genotypes. PLoS One. 2012, 7: e43274-10.1371/journal.pone.0043274.
Article
CAS
PubMed Central
PubMed
Google Scholar
Zhang X, Byrnes JK, Gal TS, Li WH, Borevitz JO: Whole genome transcriptome polymorphisms in Arabidopsis thaliana. Genome Biol. 2008, 9: R165-10.1186/gb-2008-9-11-r165.
Article
PubMed Central
PubMed
Google Scholar
Jin P, Huang LY, Wang D, Wu HM, Zhu LH, Fu BY: Expression profiling of rice AP2/EREBP genes responsive to abiotic stresses. Sci Agr Sin. 2009, 42: 3765-3773.
CAS
Google Scholar
Kim CY, Lee SH, Park HC, Bae CG, Cheong YH, Choi YJ, Han C, Lee SY, Lim CO, Cho MJ: Identification of rice blast fungal elicitor-responsive genes by differential display analysis. Mol Plant Microbe In. 2000, 13: 470-474. 10.1094/MPMI.2000.13.4.470.
Article
CAS
Google Scholar
Zhou YL, Xu MR, Zhao MF, Xie XW, Zhu LH, Fu BY, Li ZK: Genome-wide gene responses in a transgenic rice line carrying the maize resistance gene Rxo1 to the rice bacterial streak pathogen, Xanthomonas oryzae pv. oryzicola. BMC Genomics. 2010, 11: 78-10.1186/1471-2164-11-78.
Article
PubMed Central
PubMed
Google Scholar
Liu FX, Xu WY, Wei Q, Zhang ZH, Xing Z, Tan LB, Di C, Yao DX, Wang CC, Tan YJ, Yan H, Ling Y, Sun CQ, Xue YB, Su Z: Gene expression profiles deciphering rice phenotypic variation between Nipponbare (japonica) and 93–11 (indica) during oxidative stress. PLoS One. 2010, 5: e8632-10.1371/journal.pone.0008632.
Article
PubMed Central
PubMed
Google Scholar
Ross J, Li Y, Lim E, Bowles DJ: Higher plant glycosyltransferases. Genome Biol. 2001, 2: reviews3004-
Article
CAS
PubMed Central
PubMed
Google Scholar
Goel D, Singh AK, Yadav V, Babbar SB, Bansal KC: Overexpression of osmotin gene confers tolerance to salt and drought stresses in transgenic tomato (Solanum lycopersicum L.). Protoplasma. 2010, 245: 133-141. 10.1007/s00709-010-0158-0.
Article
CAS
PubMed
Google Scholar
Bell E, Mullet JE: Lipoxygenase gene expression is modulated in plants by water deficit, wounding, and methyl jasmonate. Mol Genet Genomics. 1991, 230: 456-462. 10.1007/BF00280303.
Article
CAS
Google Scholar
Gardner HW: 9-Hydroxy-traumatin, a new metabolite of the lipoxygenase pathway. Lipids. 1998, 33: 745-749. 10.1007/s11745-998-0265-z.
Article
CAS
PubMed
Google Scholar
Sasaki A, Ashikari M, Ueguchi-Tanaka M, Itoh H, Nishimura A, Swapan D, Ishiyama K, Saito T, Kobayashi M, Khush GS, Kitano H, Matsuoka M: Green revolution: a mutant gibberellin-synthesis gene in rice. Nature. 2002, 416: 701-702. 10.1038/416701a.
Article
CAS
PubMed
Google Scholar
Courtois B, McLaren G, Sinha PK, Prasad K, Yadav R, Shen L: Mapping QTLs associated with drought avoidance in upland rice. Mol Breed. 2000, 6: 55-66. 10.1023/A:1009652326121.
Article
CAS
Google Scholar
Lilley JM, Ludlow MM, McCouch SR, O’Toole JC: Locating QTL for osmotic adjustment and dehydration tolerance in rice. J Exp Bot. 1996, 47: 1427-1436. 10.1093/jxb/47.9.1427.
Article
CAS
Google Scholar
Price AH, Townend J, Jones MP, Audebert A, Courtois B: Mapping QTLs associated with drought avoidance in upland rice grown in the Philippines and West Africa. Plant Mol Biol. 2002, 48: 683-695. 10.1023/A:1014805625790.
Article
CAS
PubMed
Google Scholar
Wagner TA, Kohorn BD: Wall-associated kinases are expressed throughout plant development and are required for cell expansion. Plant Cell. 2001, 13: 303-318. 10.1105/tpc.13.2.303.
Article
CAS
PubMed Central
PubMed
Google Scholar
Osakabe Y, Yamaguchi-Shinozaki K, Shinozaki K, Tran LS: Sensing the environment: key roles of membrane-localized kinases in plant perception and response to abiotic stress. J Exp Bot. 2013, 64: 445-458. 10.1093/jxb/ers354.
Article
CAS
PubMed
Google Scholar
Zamir D: Improving plant breeding with exotic genetic libraries. Nat Rev Genet. 2001, 2: 983-989. 10.1038/35103590.
Article
CAS
PubMed
Google Scholar
Xu LX, Han LB, Huang BR: Antioxidant enzyme activities and gene expression patterns in leaves of kentucky bluegrass in response to drought and post-drought recovery. J Amer Soc Hort Sci. 2011, 136: 247-255.
CAS
Google Scholar
Caldana C, Degenkolbe T, Cuadros-Inostroza A, Klie S, Sulpice R, Leisse A, Steinhauser D, Fernie AR, Willmitzer L, Hannah MA: High-density kinetic analysis of the metabolomic and transcriptomic response of Arabidopsis to eight environmental conditions. Plant J. 2011, 67: 869-884. 10.1111/j.1365-313X.2011.04640.x.
Article
CAS
PubMed
Google Scholar
Trzcinska-Danielewicz J, Bilsk A, Fronk J, Zielenkiewicz P, Jarochowsk E, Roszczyk M, Jończyk M, Axentowicz E, Skoneczny M, Sowiński P: Global analysis of gene expression in maize leaves treated with low temperature: I. Moderate chilling (14°C). Plant Sci. 2009, 177: 648-658. 10.1016/j.plantsci.2009.09.001.
Article
CAS
Google Scholar
Koenig D, Jiménez-Gómez JM, Kimura S, Fulop D, Chitwood DH, Headland LR, Kumar R, Covington MF, Devisetty UK, Tat AV, Tohge T, Bolger A, Schneeberger K, Ossowski S, Lanz C, Xiong G, Taylor-Teeples M, Brady SM, Pauly M, Weigel D, Usadel B, Fernie AR, Peng J, Sinha NR, Maloof JN: Comparative transcriptomics reveals patterns of selection in domesticated and wild tomato. Proc Natl Acad Sci U S A. 2013, 110: 2655-2662. 10.1073/pnas.1309606110.
Article
Google Scholar
Bell GD, Kane NC, Rieseberg LH, Adams KL: RNA-seq analysis of allele-specific expression, hybrid effects, and regulatory divergence in hybrids compared with their parents from natural populations. Genome Biol Evol. 2013, 5: 1309-1323. 10.1093/gbe/evt072.
Article
PubMed Central
PubMed
Google Scholar
Yasuda K, Tsukiyama T, Karki S, Okumoto Y, Teraishi M, Saito H, Tanisaka T: Mobilization of the active transposon mPing in interspecific hybrid rice between Oryza sativa and O. glaberrima. Euphytica. 2013, 192: 17-24. 10.1007/s10681-012-0810-1.
Article
CAS
Google Scholar
Shivaprasad PV, Dunn RM, Santos BA, Bassett A, Baulcombe DC: Extraordinary transgressive phenotypes of hybrid tomato are influenced by epigenetics and small silencing RNAs. EMBO J. 2012, 31: 257-266. 10.1038/emboj.2011.458.
Article
CAS
PubMed Central
PubMed
Google Scholar
Reddy AS, Ali GS, Celesnik H, Day IS: Coping with stresses: roles of calcium- and calcium/calmodulin-regulated gene expression. Plant Cell. 2011, 23: 2010-2032. 10.1105/tpc.111.084988.
Article
CAS
PubMed Central
PubMed
Google Scholar
Asano T, Hayashi N, Kikuchi S, Ohsugi R: CDPK-mediated abiotic stress signaling. Plant Signal Behav. 2012, 7: 817-821. 10.4161/psb.20351.
Article
CAS
PubMed Central
PubMed
Google Scholar
Peleg Z, Blumwald E: Hormone balance and abiotic stress tolerance in crop plants. Curr Opin Plant Biol. 2011, 14: 290-295. 10.1016/j.pbi.2011.02.001.
Article
CAS
PubMed
Google Scholar
Cheong JJ, Choi YD: Methyl jasmonate as a vital substance in plants. Trends Genet. 2003, 19: 409-413. 10.1016/S0168-9525(03)00138-0.
Article
CAS
PubMed
Google Scholar
Harb A, Krishnan A, Ambavaram MM, Pereira A: Molecular and physiological analysis of drought stress in Arabidopsis reveals early responses leading to acclimation in plant growth. Plant Physiol. 2010, 154: 1254-1271. 10.1104/pp.110.161752.
Article
CAS
PubMed Central
PubMed
Google Scholar
Du H, Liu H, Xiong L: Endogenous auxin and jasmonic acid levels are differentially modulated by abiotic stresses in rice. Front Plant Sci. 2013, 4: 397-
Article
PubMed Central
PubMed
Google Scholar
Aimar D, Calafat M, Andrade AM, Carassay L, Abdala GI, Molas ML: Drought tolerance and stress hormones: From model organisms to forage crops. Plants and Environment. Edited by: Dr. Hemanth Vasanthaiah. 2011, ISBN: 978-953-307-779-6, InTech, Available from: [http://www.intechopen.com/books/plants-and-environment/drought-tolerance-and-stress-hormones-from-model-organisms-to-forage-crops],
Google Scholar
Shan CJ, Liang ZS: Jasmonic acid regulates ascorbate and glutathione metabolism in Agropyron cristatum leaves under water stress. Plant Sci. 2010, 178: 130-139. 10.1016/j.plantsci.2009.11.002.
Article
CAS
Google Scholar
Wasternack C, Hause B: Jasmonates: biosynthesis, perception, signal transduction and action in plant stress response, growth and development. Ann Bot-london. 2013, 111: 1021-1058. 10.1093/aob/mct067.
Article
CAS
Google Scholar
Lindemose S, O’Shea C, Jensen MK, Skriver K: Structure, function and networks of transcription factors involved in abiotic stress responses. Int J Mol Sci. 2013, 14: 5842-5878. 10.3390/ijms14035842.
Article
CAS
PubMed Central
PubMed
Google Scholar
Rushton DL, Tripathi P, Rabara RC, Lin J, Ringler P, Boken AK, Langum TJ, Smidt L, Boomsma DD, Emme NJ, Chen X, Finer JJ, Shen QJ, Rushton PJ: WRKY transcription factors: key components in abscisic acid signalling. Plant Biotechnol J. 2012, 10: 2-11. 10.1111/j.1467-7652.2011.00634.x.
Article
CAS
PubMed
Google Scholar
Nakashima K, Takasaki H, Mizoi J, Shinozaki K, Yamaguchi-Shinozaki K: NAC transcription factors in plant abiotic stress responses. Biochim Biophys Acta. 1819, 2012: 97-103.
Google Scholar
Niu Y, Figueroa P, Browse J: Characterization of JAZ-interacting bHLH transcription factors that regulate jasmonate responses in Arabidopsis. J Exp Bot. 2011, 62: 2143-2154. 10.1093/jxb/erq408.
Article
CAS
PubMed Central
PubMed
Google Scholar
Huang XH, Feng Q, Qian Q, Zhao Q, Wang L, Wang A, Guan JP, Fan DL, Weng QJ, Huang T, Dong GJ, Sang T, Han B: High-throughput genotyping by whole-genome resequencing. Genome Res. 2009, 19: 1068-1076. 10.1101/gr.089516.108.
Article
CAS
PubMed Central
PubMed
Google Scholar
You J, Zong W, Li XK, Ning J, Hu HH, Li XH, Xiao JH, Xiong LZ: The SNAC1-targeted gene OsSRO1c modulates stomatal closure and oxidative stress tolerance by regulating hydrogen peroxide in rice. J Exp Bot. 2013, 64: 569-583. 10.1093/jxb/ers349.
Article
CAS
PubMed Central
PubMed
Google Scholar
Arora R, Pitchay DS, Bearce BC: Water-stress-induced heat tolerance in geranium leaf tissues: a possible linkage through stress proteins?. Physiol Plant. 1998, 103: 24-34. 10.1034/j.1399-3054.1998.1030104.x.
Article
CAS
Google Scholar
Bonnecarre’re V, Borsani O, Dı’az P, Capdevielle F, Blanco P, Monza J: Response to photoxidative stress induced by cold in japonica rice is genotype dependent. Plant Sci. 2011, 180: 726-732. 10.1016/j.plantsci.2011.01.023.
Article
Google Scholar
Kawahara Y, de la Bastide M, Hamilton JP, Kanamori H, McCombie WR, Ouyang S, Schwartz DC, Tanaka T, Wu J, Zhou S, Childs KL, Davidson RM, Lin H, Quesada-Ocampo L, Vaillancourt B, Sakai H, Lee SS, Kim J, Numa H, Itoh T, Buell CR, Matsumoto T: Improvement of the Oryza sativa Nipponbare reference genome using next generation sequence and optical map data. Rice. 2013, 6: 4-10.1186/1939-8433-6-4.
Article
PubMed
Google Scholar
Trapnell C, Pachter L, Salzberg SL: TopHat: discovering splice junctions with RNA-Seq. Bioinformatics. 2009, 25: 1105-1111. 10.1093/bioinformatics/btp120.
Article
CAS
PubMed Central
PubMed
Google Scholar
Trapnell C, Williams BA, Pertea G, Mortazavi A, Kwan G, van Baren MJ, Salzberg SL, Wold BJ, Pachter L: Transcript assembly and quantification by RNA-Seq reveals unannotated transcripts and isoform switching during cell differentiation. Nat Biotechnol. 2010, 28: 511-515. 10.1038/nbt.1621.
Article
CAS
PubMed Central
PubMed
Google Scholar
Mortazavi A, Williams BA, McCue K, Schaeffer L, Wold B: Mapping and quantifying mammalian transcriptomes by RNA-Seq. Nat Methods. 2008, 5: 621-628. 10.1038/nmeth.1226.
Article
CAS
PubMed
Google Scholar
Du Z, Zhou X, Ling Y, Zhang Z, Su Z: agriGO: a GO analysis toolkit for the agricultural community. Nucleic Acids Res. 2010, 38: 64-70. 10.1093/nar/gkq310.
Article
Google Scholar
Benjamini Y, Drai D, Elmer G, Kafkafi N, Golani I: Controlling the false discovery rate in behavior genetics research. Behav Brain Res. 2001, 125: 279-284. 10.1016/S0166-4328(01)00297-2.
Article
CAS
PubMed
Google Scholar
Cao P, Jung KH, Choi D, Hwang D, Zhu J, Ronald PC: The rice oligonucleotide array database: an atlas of rice gene expression. Rice. 2012, 5: 17-10.1186/1939-8433-5-17.
Article
PubMed
Google Scholar
Swarbrick PJ, Huang K, Liu G, Slate J, Press MC, Scholes JD: Global patterns of gene expression in rice varieties undergoing a susceptible or resistant interaction with the parasitic Strigahermonthica. New Phytol. 2008, 179: 515-529. 10.1111/j.1469-8137.2008.02484.x.
Article
CAS
PubMed
Google Scholar
Livak KJ, Schmittgen TD: Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method. Methods. 2001, 25: 402-408. 10.1006/meth.2001.1262.
Article
CAS
PubMed
Google Scholar