For citations:

Krylov A.Yu., Masyakin V.B., Bogdanovich A.P., Nikonovich S.N., Nadyrov E.A. COMPARISON OF INCIDENCE OF INITIALLY MULTIPLE MALIGNANT NEOPLASMS IN PATIENTS WITH STOMACH CANCER RESIDING IN REGIONS WITH DIFFERENT ECOLOGICAL SITUATION. Health and Ecology Issues. 2011;(1):120-124. (In Russ.) https://doi.org/10.51523/2708-6011.2011-8-1-23