title: Uteroplacental blood flow in normal and prolonged pregnancies pursued with tracer microspheres.
mesh_terms: D000818:Animals; D005260:Female; D008722:Methods; D008863:Microspheres; D010920:Placenta / Q000098:blood supply*; D011247:Pregnancy; D011868:Radioisotopes; D051381:Rats; D012039:Regional Blood Flow; D014599:Uterus / Q000098:blood supply*
chemical_list: D011868:Radioisotopes