Figure 6From: Use of Both Cumulus Cells’ Transcriptomic Markers and Zona Pellucida Birefringence to Select Developmentally Competent Oocytes in Human Assisted Reproductive TechnologiesZP birefringence classes as shown by the polscope. (A): is a low zona birefringence MII oocyte (LZB); (B): is a high zona birefringence MII oocyte (HZB).Back to article page