Risk of inflammatory bowel disease attributable to smoking, oral contraception and breastfeeding in Italy: A nationwide case-control study

in: International journal of epidemiology : official journal of the International Epidemiological Association, IEA | Vol. 27, No. 3 (1998), p. 397-404

by Corrao, G. | Tragnone, A. | Caprilli, R. | +10