Burmak , Y. ., Y. . Petrov, T. . Ivanytska, and Іvanytskyi І. . “THE EXPRESSION OF METABOLIC CHANGES AND FACTORS OF NON-SPECIFIC RESISTANCE IN PATIENTS WITH CHRONIC BRONCHITIS AND COMORBID PEPTIC ULCER AT DIFFERENT TERMS OF TREATMENT AND OUTPATIENT OBSERVATION”. Collection of Scientific Papers «ΛΌГOΣ», no. August 18, 2023; Cambridge, UK, Sept. 2023, pp. 254-6, doi:10.36074/logos-18.08.2023.73.