Hygiene as a science. Prophylactic direction of medicine. Methods of hygienic researches. Hygienic role of climate and weather, peculiarities of their influence to the health of people.
https://www.powershow.com/view4/78dbaa-ZjJmM/Hygiene_as_a_science_Prophylactic_direction_of_medicine_Methods_of_hygienic_researches_Hygienic_role_of_climate_and_weather_peculiarities_of_their_influence_to_the_health_of_people_powerpoint_ppt_presentation
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