For citations:

Ignatova G.L., Stepanishcheva L.A., Pechenkina Yu.O. Effects of fenspirid on some parameters of mucosal immunity in patients with early-stage chronic obstructive pulmonary disease. PULMONOLOGIYA. 2008;(3):42-46. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-3-42-46