title: A grid and isometric rulers for accurate needle placement during intrauterine transfusion.
mesh_terms: D001787:Blood Group Incompatibility; D001805:Blood Transfusion, Intrauterine / Q000295:instrumentation*; D004899:Erythroblastosis, Fetal / Q000209:etiology / Q000628:therapy*; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D007274:Injections, Intraperitoneal / Q000295:instrumentation; D008722:Methods; D011247:Pregnancy; D011860:Radiography, Abdominal; D012204:Rh-Hr Blood-Group System
chemical_list: D012204:Rh-Hr Blood-Group System