For citations:
Kurochkin V.Yu., Khoroshavina Ye.I., Fedorov A.A. Approaches to Organization of Sanitary and Epidemiological Surveillance over Sanitary Protection Districts of Mountain and Spa Resorts and Recreational Areas. Public Health and Life Environment – PH&LE. 2021;(6):48-55. (In Russ.) https://doi.org/10.35627/22195238/2021-339-6-48-55