KYRTOPOULOS, SA PIGNATELLI, B KARKANIAS, G GOLEMATIS, B and ESTEVE, J, STUDIES IN GASTRIC CARCINOGENESIS .5. THE EFFECTS OF ASCORBIC-ACID ON N-NITROSO COMPOUND FORMATION IN HUMAN GASTRIC-JUICE INVIVO AND INVITRO, Journal of Carcinogenesis, (12), 1371-1376, 1991, Oxford Univ Press, Oxford, United Kingdom, 1477-3163