A short historical overview of malaria in worldwide and in Bulgaria. The fight against malaria-- the main task of sanitary epidemiological station in Stara Zagora in the first year of its opening, 1950
A short historical overview of malaria in worldwide and in Bulgaria. The fight against malaria-- the main task of sanitary epidemiological station in Stara Zagora in the first year of its opening, 1950 / Пълен текст
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Прима-Софт ООД, 2026