ABSTRACTS 310.176 Abstracts of the 30th Annual Meeting of the Society for Epidemiologic Research Edmonton, Alberta, Canada, June 12-14, 1997. - [Baltimore : John Hopkins University School of Hygiene and Public Health], 1997. - [2], 89 s. ; 28 cm. -(American Journal of Epidemiology, ISSN 0002-9262 ; vol.145,nr 11,suppl.)