TY  - RPRT
TI  - Ipratropium bromide in COPD and asthma.
AU  - J Atsmon
PY  - 1988
DO  - 10.1097/00000441-198808000-00015
UR  - https://pubmed.ncbi.nlm.nih.gov/2969679/
ID  - 2969679
ER  -