TY  - RPRT
TI  - Expectorants and sputum viscosity.
AU  - J FORBES
AU  - L WISE
PY  - 1957
DO  - 10.1016/s0140-6736(57)90875-9
UR  - https://pubmed.ncbi.nlm.nih.gov/13476719/
ID  - 13476719
ER  -