MICHAEL, C M Follow-up studies of shy, withdrawn children. II. Relative incidence of schizophrenia. [electronic resource] - The American journal of orthopsychiatry Apr 1957 - 331-7 p. digital Publication Type: Journal Article ISSN: 0002-9432 Standard No.: 10.1111/j.1939-0025.1957.tb05496.x doi Subjects--Topical Terms: ChildConduct DisorderFollow-Up StudiesHumansIncidenceInfantPsychology, ChildSchizophrenia