Bell, W E The clinical approach to certain post-nataly acquired causes of mental retardation. [electronic resource] - Journal of the Iowa Medical Society Feb 1965 - 60-4 p. digital Publication Type: Journal Article ISSN: 0021-0587 Subjects--Topical Terms: Brain Damage, Chronic--etiologyChildChild, PreschoolHumansInfantIntellectual Disability--diagnosis