TY  - RPRT
TI  - Surfactant 1981.
AU  - J M Gupta
PY  - 1981
DO  - 10.5694/j.1326-5377.1981.tb135828.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6894778/
ID  - 6894778
ER  -