D W Evans

Profiles and development of adaptive behavior in children with Down syndrome.

R. Hodapp, E M Dykens, R M Hodapp, 1994, American journal of mental retardation : AJMR.

Early parental preoccupations and behaviors and their possible relationship to the symptoms of obsessive‐compulsive disorder

D. Cohen, J. Leckman, R. Feldman, 1999, Acta psychiatrica Scandinavica. Supplementum.