Handicapped children, birth to age 3.
D000367:Age Factors; D002649:Child Abuse; D002675:Child, Preschool; D004495:Education of Persons with Intellectual Disabilities; D005191:Family Characteristics; D006296:Health Services; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008607:Intellectual Disability / Q000453:epidemiology; D009034:Mother-Child Relations; D012306:Risk; D014481:United States