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Comparison of high and low intensity contact between secondary and primary care to detect people at ultra-high risk for psychosis: study protocol for a theory-based, cluster randomized controlled trial.
Perez J, Russo DA, Stochl J, Byford S, Zimbron J, Graffy JP, Painter M, Croudace TJ, Jones PB. Perez J, et al. Among authors: stochl j. Trials. 2013 Jul 17;14:222. doi: 10.1186/1745-6215-14-222. Trials. 2013. PMID: 23866815 Free PMC article. Clinical Trial.
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