By Bird William   in British Journal of General Practice

ISSN:1478-5242|57|534|69-69

Royal College of General Practitioners‎(2007)‎

Access to resources Favorite 14.489573

By Hajat Shakoor   Bird William   Haines Andy   in European Journal of Epidemiology

ISSN:0393-2990|19|10|959-968

Springer Publishing Company ‎(2004)‎

Access to resources Favorite 8.693743