title: Further data on the Pta antigen.
abstract: The second Pt(a+) family is described. Pta is shown to segregate independently from several genetic markers.
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004375:Duffy Blood-Group System; D005260:Female; D005796:Genes; D006680:HLA Antigens / Q000235:genetics; D006801:Humans; D008951:MNSs Blood-Group System; D008297:Male; D010375:Pedigree; D010641:Phenotype; D011995:Recombination, Genetic; D012204:Rh-Hr Blood-Group System
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004375:Duffy Blood-Group System; D006680:HLA Antigens; D008951:MNSs Blood-Group System; D012204:Rh-Hr Blood-Group System