Yule, W Differential prognosis of reading backwardness and specific reading retardation. [electronic resource] - The British journal of educational psychology Nov 1973 - 244-8 p. digital Publication Type: Journal Article ISSN: 0007-0998 Standard No.: 10.1111/j.2044-8279.1973.tb02264.x doi Subjects--Topical Terms: AdolescentChildDiagnosis, DifferentialDyslexia--diagnosisHumansPrognosis