TY  - RPRT
TI  - Chronic obstructive lung disease after practolol.
AU  - P Bartsch
PY  - 1977
DO  - 10.1016/s0140-6736(77)91237-5
UR  - https://pubmed.ncbi.nlm.nih.gov/67318/
ID  - 67318
ER  -