NATURE'S HOMOGRAFTS.
D064591:Allografts; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012106:Research; D014181:Transplantation Immunology; D014184:Transplantation, Homologous
EXPERIMENTAL LAB STUDY; MATERNAL-FETAL EXCHANGE; TRANSPLANTATION IMMUNOLOGY