title: Letter: Diagnostic amniocentesis and fetal-maternal bleeding.
mesh_terms: D000649:Amniocentesis / Q000009:adverse effects*; D000013:Congenital Abnormalities / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000209:etiology; D005865:Gestational Age; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012204:Rh-Hr Blood-Group System; D013997:Time Factors
chemical_list: D012204:Rh-Hr Blood-Group System