title: INTRAUTERINE RESPIRATION IN THE RAT FETUS. 1. DIRECT OBSERVATIONS--COMPARISON WITH THE GUINEA PIG.
mesh_terms: D000818:Animals; D001158:Arteries; D005260:Female; D005333:Fetus; D006168:Guinea Pigs; D006801:Humans; D000860:Hypoxia; D010100:Oxygen; D011247:Pregnancy; D011270:Pregnancy, Animal; D051381:Rats; D012106:Research; D012119:Respiration; D014599:Uterus
chemical_list: D010100:Oxygen
keywords: ANOXIA; ARTERIES; EXPERIMENTAL LAB STUDY; FETUS; GUINEA PIGS; OXYGEN; PREGNANCY, ANIMAL; RATS; RESPIRATION; UTERUS