TY - GEN AU - New,D A AU - Mizell,M TI - Opossum fetuses grown in culture SN - 0036-8075 PY - 1972///0330 KW - Animals KW - Blood Circulation KW - Culture Media KW - Culture Techniques KW - Embryonic and Fetal Development KW - Extraembryonic Membranes KW - growth & development KW - Female KW - Gestational Age KW - Methods KW - Opossums KW - Pregnancy N1 - Publication Type: Journal Article UR - https://doi.org/10.1126/science.175.4021.533 ER -