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Auteur E. C. JOHNSTONE |
Documents disponibles écrits par cet auteur (2)

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Article : Périodique
ENGLISH : Aims: To examine the effect of frequent cannabis use at various times during the lifetime upon the development of psychotic symptoms and of schizophrenia. Design: Cannabis use was examined within the Edinburgh High Risk Study (EHRS),[...]![]()
Périodique
M. R. MUNAFO ; T. G. CLARK ; E. C. JOHNSTONE ; M. F. G. MURPHY ; R. T. WALTON | 2004ENGLISH : Considerable evidence indicates that smoking behavior is under a degree of genetic influence. We conducted a systematic review of candidate gene studies of smoking behavior and, where sufficient studies existed, combined reported dat[...]