Why is recruitment to trials difficult? An investigation into recruitment difficulties in an RCT of supported employment in patients with severe mental illness
| Autor: | Howard, Louise, de Salis, Isabel, Tomlin, Zelda, Thornicroft, Graham, Donovan, Jenny |
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| Zdroj: | In Contemporary Clinical Trials January 2009 30(1):40-46 |
| Databáze: | ScienceDirect |
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