Ilchenko, S., Mozheiko, T., & Fialkovska, A. (2023). THE PROGNOSTIC SIGNIFICANCE OF SALIVARY PEPSIN LEVEL IN THE DEVELOPMENT OF RECURRENT RESPIRATORY PATHOLOGY IN INFANTS WITH RUMINATION SYNDROME. Eastern Ukrainian Medical Journal, 11(4), 421-429. https://doi.org/10.21272/eumj.2023;11(4):421-429