The incidence of twins in cerebral palsy and mental retardation.
D002547:Cerebral Palsy / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D015994:Incidence; D008607:Intellectual Disability / Q000706:statistics & numerical data*; D011247:Pregnancy; D011248:Pregnancy Complications; D014427:Twins / Q000002:abnormalities*
CEREBRAL PALSY/statistics; MENTAL DEFICIENCY/statistics; TWINS/abnormalities