TY - GEN AU - Bregman,J D AU - Hodapp,R M TI - Current developments in the understanding of mental retardation. Part I: Biological and phenomenological perspectives SN - 0890-8567 PY - 1991///1219 KW - Adolescent KW - Brain Damage, Chronic KW - diagnosis KW - Child KW - Diagnosis, Differential KW - Humans KW - Intellectual Disability KW - Neurocognitive Disorders KW - Risk Factors N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Review UR - https://doi.org/10.1016/s0890-8567(10)80001-2 ER -