1. Cancer incidence in five continents;Parkin;IARC Scientific Publications No. 120,1992
2. Les cancers digestifs en France;Launoy;Gastroenterol Clin biol,1992
3. Cancer Statistics, Registration;Office of Population Census and Surveys,1992
4. Mortality Statistics;Office of Population Census and Surveys,1992
5. Cancer statistics, 1990;Silverberg;CA Cancer J Clin,1990