Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5061510.17816/kazmj50615Research ArticleMeetings of medical societies. Hygiene section of NMA. Meeting of 10/XI 1934.13031935313-45385381911202019112020Copyright © 2020, Board Е.2020<p>Dr. N.A. Laptev "Sanitary minimum for certain categories of health workers." Prof. M.V. Trotsky and Dr. Abaev "A quick way to determine the amount of table salt in food."</p>Kazan Medical archiveКазанский медицинский архив