For citations:
Maslak E.E., Fomenko I.V. Development of paediatric dentistry service in Volgograd Region (in memory of Litovkina L. S.). Pediatric dentistry and dental prophylaxis. 2020;20(2):154-155. (In Russ.) https://doi.org/10.33925/1683-3031-2020-20-2-154-155