For citations:
Visel A.A., Khabibulin K.A., Khabibulina R.T., Miftakhutdinova R.T. Acute tests with ipratropium bromide and salbutamol in patients with chronic obstructive bronchitis and duodenal or stomach ulcers. PULMONOLOGIYA. 2003;(2):21-24. (In Russ.)