title: A study of fixation of early amphibian embryos for electron microscopy.
mesh_terms: D000447:Aldehydes; D000818:Animals; D001001:Anura; D002021:Buffers; D002462:Cell Membrane; D002642:Chick Embryo; D003593:Cytoplasm; D003594:Cytoplasmic Granules; D004625:Embryo, Nonmammalian / Q000166:cytology*; D006652:Histological Techniques; D008722:Methods; D008854:Microscopy, Electron; D009210:Myofibrils; D009992:Osmium; D011894:Rana pipiens / Q000196:embryology; D012270:Ribosomes; D013997:Time Factors; D014021:Tissue Preservation; D014981:Xenopus / Q000196:embryology
chemical_list: D000447:Aldehydes; D002021:Buffers; D009992:Osmium