PAPAGEORGIS, D PSEUDO-FEEBLEMINDEDNESS AND THE CONCEPT OF MENTAL RETARDATION. [electronic resource] - American journal of mental deficiency Nov 1963 - 340-4 p. digital Publication Type: Journal Article ISSN: 0002-9351 Subjects--Topical Terms: Diagnosis, DifferentialHumansIntellectual DisabilityIntelligence TestsPrognosis