TY  - RPRT
TI  - ON NON-SPECIFIC BRONCHITIS CIRCUMSCRIPTA.
AU  - E VARPELA
PY  - 1964
DO  - 10.1378/chest.45.6.591
UR  - https://pubmed.ncbi.nlm.nih.gov/14168526/
ID  - 14168526
ER  -