1. New South Wales Centre for Education and Information on Drugs Alcohol. Information sheet: caffeine,1983
2. Coffee drinking and cancer of the lower urinary tract;Cole, P.;Lancet,1971
3. Renal carcinoma and coffee consumption in 16 countries;Shennan, D.H.;BrJ Cancer,1973
4. Epidemiology of cancer of the renal pelvis and ureter;Schmauz, R.; Cole, P.;J Nail Cancer Inst,1974
5. Coffee and cancer of the pancreas;MacMahon, B.; Yen, S.; Trichopoulos, D.; Warren, K.; Nardi, G.;NEnglJMed,1981