Additional File 1.

Search strategy for identification of studies. The Schizophrenia Group's register is based on regular searches of BIOSIS Inside; CENTRAL; CINAHL; EMBASE; MEDLINE and PsycINFO; the hand searching of relevant journals and conference proceedings, and searches of several key grey literature sources. A full description is given in the Group's module on the Cochrane Library.

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Adams et al. BMC Medicine 2005 3:15   doi:10.1186/1741-7015-3-15