00652naa#a2200205#i#450# EN\\bibl\13908 20240702022332.2 2409-3750 20161115b2016####ek#y0engy0150####ca RUS RU ANALYSIS OF PARAMETERS SPECTRAL DENSITY OF HEART RATE VARIABILITY OF CHILDREN YUGRA, IN DURING SANATORIA THERAPY Journal article Tula LLC Information and publishing center Innovations and investments 2016 0 с. Journal article local Shakirova L. Nifontova O. Filatova D. Sherstyuk E. zh-szf.ru