title: Fixation of sea urchin eggs. An improved technique for the study of ultrastructure.
mesh_terms: D000447:Aldehydes; D000818:Animals; D004447:Echinodermata / Q000166:cytology; D005260:Female; D006652:Histological Techniques; D007202:Indicators and Reagents; D008722:Methods; D008854:Microscopy, Electron; D010063:Ovum / Q000166:cytology*
chemical_list: D000447:Aldehydes; D007202:Indicators and Reagents