title: The HL-A system in trophoblastic neoplasia.
mesh_terms: D000017:ABO Blood-Group System; D001787:Blood Group Incompatibility / Q000150:complications* / Q000175:diagnosis; D002822:Choriocarcinoma / Q000209:etiology / Q000276:immunology; D005260:Female; D006801:Humans; D007519:Isoantigens; D008297:Male; D010641:Phenotype; D011247:Pregnancy; D011248:Pregnancy Complications; D014328:Trophoblastic Neoplasms / Q000209:etiology* / Q000276:immunology*; D044465:White People
chemical_list: D000017:ABO Blood-Group System; D007519:Isoantigens