title: Placentation in the garter snake, Thamnophis sirtalis.
mesh_terms: D000469:Alkaline Phosphatase; D000818:Animals; D004395:Dye Dilution Technique; D005321:Extraembryonic Membranes / Q000033:anatomy & histology; D005260:Female; D006651:Histocytochemistry; D007501:Iron / Q000378:metabolism; D008055:Lipids; D008431:Maternal-Fetal Exchange; D008854:Microscopy, Electron; D010710:Phosphates / Q000378:metabolism; D010920:Placenta / Q000033:anatomy & histology* / Q000502:physiology; D011247:Pregnancy; D011868:Radioisotopes; D012911:Snakes / Q000196:embryology*; D014599:Uterus / Q000033:anatomy & histology / Q000378:metabolism*
chemical_list: D008055:Lipids; D010710:Phosphates; D011868:Radioisotopes; D007501:Iron; D000469:Alkaline Phosphatase