TY - JOUR T1 - Public health medicine and primary care. JF - Journal of Epidemiology and Community Health JO - J Epidemiol Community Health SP - 108 DO - 10.1136/jech.50.1.108 VL - 50 IS - 1 AU - D P Gray Y1 - 1996/02/01 UR - http://jech.bmj.com/content/50/1/108.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -