BMJ (2010) - Comments
pubmed: 20418251  doi: 10.1136/bmj.c1777  issn: 0959-8138  issn: 1468-5833  issn: 1756-1833 

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Alison J Wearden, Christopher Dowrick, Carolyn Chew-Graham, Richard P Bentall, Richard K Morriss, Sarah Peters, Lisa Riste, Gerry Richardson, Karina Lovell, Graham Dunn,