Mentally retarded schizoid twin girls with 47 chromosomes.
D002875:Chromosomes; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D019989:Persons with Intellectual Disabilities; D012559:Schizophrenia / Q000235:genetics*; D014427:Twins / Q000002:abnormalities*
CHROMOSOMES; MENTAL DEFICIENCY/genetics; SCHIZOPHRENIA/genetics; TWINS/abnormalities