Kowalska, M. et al. 2026. THE ROLE OF MICROBIAL ENGRAFTMENT AND KEYSTONE SPECIES IN THE EFFICACY OF FAECAL MICROBIOTA TRANSPLANTATION IN PATIENTS WITH INFLAMMATORY BOWEL DISEASE - A REVIEW OF RECENT STUDIES. International Journal of Innovative Technologies in Social Science. 4, 1(49) (Mar. 2026). DOI:https://doi.org/10.31435/ijitss.1(49).2026.4881.