title: [Serologic explanation of the origin of the supernumerary X-chromosome in the XXXXY-syndrome].
mesh_terms: D001789:Blood Group Antigens; D003456:Cryptorchidism / Q000150:complications; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000150:complications; D007621:Karyotyping; D008297:Male; D008938:Mitosis; D009139:Musculoskeletal Abnormalities; D010375:Pedigree; D012728:Sex Chromatin; D012729:Sex Chromosome Aberrations
chemical_list: D001789:Blood Group Antigens
vernacular_title: Serologische Klärung der Herkunft der überzähligen X-Chromosomen beim XXXXY-Syndrom.