Ilchenko, S.I. et al. 2015. ТО THE PROBLEM OF SPREADING AND PREVENTION OF TOBACCO SMOKING AMONG TEENAGERS OF SECONDARY SCHOOLS. Actual Problems of Pediatrics, Obstetrics and Gynecology. 1 (Jul. 2015). DOI:https://doi.org/10.11603/24116-4944.2015.1.4664.