Authors : Shelton NJ; The authors are with Health and Social Surveys Research Group, Research Department of Epidemiology and Public Health, University College London, London, England.; Knott CS
Source:
American journal of public health [Am J Public Health] 2014 Apr; Vol. 104 (4), pp. 629-31. Date of Electronic Publication: 2014 Feb 13.Publisher: American Public Health Association Country of Publication: United States NLM ID: 1254074 Publication Model: Print-Electronic Cited Medium:
Source:
American journal of public health [Am J Public Health] 2001 Mar; Vol. 91 (3), pp. 375-84.Publisher: American Public Health Association Country of Publication: United States NLM ID: 1254074 Publication Model: Print Cited Medium: Print