title: Letter: Maternal blood group A and pre-eclampsia.
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D001794:Blood Pressure; D005260:Female; D006801:Humans; D011225:Pre-Eclampsia / Q000097:blood*; D011247:Pregnancy; D011507:Proteinuria
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens