00849naa#a2200217#i#450# EN\\bibl\16444 20250715023335.2 20250626b2025####ek#y0engy0150####ca RU POSSIBILITY OF DIAGNOSING DISEASES BY THE RATIO OF CONCENTRATIONS OF GASES IN EXHALED AIR Conference article/thesis Tomsk V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences 2025 3 с. Физика. 03.04.02 local Conference article/thesis local Использование явлений в практических целях. 53.06 Физика. 223 bbk Оптика. 6135 tbk Оптика. 29.31 grnti Ageev B. G. Nikiforova O. Yu. iao.editorum.ru