For citations:
Zhidkova E.A., Oranskaya A.N., Kalinin M.R., Gurevich K.G. Association of plasma levels of testosterone and vitamin D with abdominal obesity and smoking. Pilot study. Russian Journal of Occupational Health and Industrial Ecology. 2019;(4):219-222. (In Russ.) https://doi.org/10.31089/1026-9428-2019-59-4-219-222