For citations:

Tikhonova E.S., Gavrilenko T.E., Rodina E.V. A case of selective immunoglobulin A deficiency associated with Crohn's disease. Medical and Biological Problems of Life Activity. 2025;(4):103-108. (In Russ.) https://doi.org/10.58708/2074-2088.2025-4(36)-103-108