Further observations on the relationship of maternal ABO and Rh types to fetal death.
D000017:ABO Blood-Group System; D000328:Adult; D044383:Black People; D001787:Blood Group Incompatibility / Q000150:complications; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System; D044465:White People
D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System