[Blood coagulation disorders and tumor growth].

A relationship between blood coagulation system and tumor growth is discussed. The role of hemocoagulation disorders in the pathogenesis, dissemination and advancement of disease at molecular, cellular, body and population level is discussed on the basis of the authors' results and literature data. Rastr electron microscopy and immunofluorescent method revealed fibrin on the surface of tumor cells both in vivo and in vitro which is thought to play a masking and protective role.

[Analytical epidemiology of osteogenic sarcoma in the Armenian SSR].

Morbidity rates for osteogenic sarcoma in the Armenian SSR within 10 years (1970-1979) were studied. The climatic, geographic and geochemical peculiarities of low and high morbidity rate regions of the Republic were compared. The rates were high in areas where the soil is rich in boron and poor in silicon, cobalt and zinc and where, as a rule, calcium level in irrigating and drinking water is high.

[Experience in active detection of oncological diseases at industrial enterprises in the Armenian SSR].

A questionnaire-based mass screening was conducted at a number of industrial enterprises in the Armenian SSR. The results were evaluated on the basis of 11,035 comprehensive questionnaires. It was found that instrumental, laboratory, X-ray and morphological examination had to be carried out in 1,116 persons (10,1%).