TY - RPRT TI - Polarized light microscopy and digital image processing identify a multilaminar structure of the hamster zona pellucida. AU - D Keefe AU - P Tran AU - C Pellegrini AU - R Oldenbourg PY - 1997 DO - 10.1093/humrep/12.6.1250 UR - https://pubmed.ncbi.nlm.nih.gov/9222011/ ID - 9222011 ER -