Early fusion of two human embryos?
D001798:Blood Proteins; D002678:Chimera; D012734:Disorders of Sex Development / Q000235:genetics*; D004912:Erythrocytes / Q000201:enzymology / Q000276:immunology; D005260:Female; D005387:Finland; D005787:Gene Frequency; D006066:Gonads / Q000033:anatomy & histology; D006680:HLA Antigens; D006801:Humans; D007223:Infant; D007519:Isoantigens / Q000032:analysis; D007621:Karyotyping; D008967:Molecular Biology; D009030:Mosaicism; D010641:Phenotype; D012730:Sex Chromosomes; D012732:Sex Determination Analysis
D001798:Blood Proteins; D006680:HLA Antigens; D007519:Isoantigens