00493naa#a2200169#i#450# EN\INFRA-M\bibl\11164 20260516093227.6 2075-4094 20160519b2016####ek#y0engy0150####ca RUS RU Serum enzyme monitoring in training of elite athletes in endurance sports Journal article Moscow INFRA-M Academic Publishing LLC. 2016 0 с. Journal article local Rybina I. zh-szf.ru