title: Anomalous blood typing from impersonation.
abstract: Biological factitious, and technical reasons have previously been reported for real or apparent changes in blood type. In two cases, an apparent change in blood type resulted from a previous impersonation of the patient by a different person.
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D001789:Blood Group Antigens; D001803:Blood Transfusion; D002648:Child; D008192:Deception; D005260:Female; D006650:Histocompatibility Testing; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests; D012204:Rh-Hr Blood-Group System; D012306:Risk
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System