Furdychko LO, Pohoretska YO. Meaning of indices of nitric oxide system for early period of peptic ulcer disease formation in the presence of pneumonia. J Educ Health Sport [Internet]. 2018 Jan. 31 [cited 2024 Jul. 27];8(1):269-73. Available from: https://apcz.umk.pl/JEHS/article/view/5481