an introduction Graham Moon Myles Gould Tim Brown Craig Duncan Paul Lggulden Kelvyn Jones Andrea litva Sv Subramanian Liz Twigg creator text USA Open University press 2000 monographic vii, 190 p. : ill. ,(Col) ; 24 cm. Include Appendix, Glossary, References and Index. Medical science Public Health Epidemiology Public health Disease distribution Determinants of health Risk factors Epidemiology RIPS 614.4 EPI 9780335200122 (pbk) 0335200125(pbk)