TY - GEN AU - Gresham,E L AU - Simons,P S AU - Battaglia,F C TI - Maternal-fetal urea concentration difference in man: metabolic significance SN - 0022-3476 PY - 1972///0111 KW - Female KW - Fetus KW - metabolism KW - Humans KW - Maternal-Fetal Exchange KW - Pregnancy KW - Time Factors KW - Umbilical Arteries KW - Urea KW - blood KW - Veins N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0022-3476(71)80396-7 ER -