TY  - RPRT
TI  - Nitrazepam in chronic obstructive bronchitis.
AU  - A Pines
PY  - 1972
DO  - 10.1136/bmj.3.5822.352-c
UR  - https://pubmed.ncbi.nlm.nih.gov/5046519/
ID  - 5046519
ER  -