TY  - RPRT
TI  - Upper airway obstruction.
AU  - J Schofferman
AU  - P A Oill
PY  - 1976
DO  - 10.1016/s0361-1124(76)80105-0
UR  - https://pubmed.ncbi.nlm.nih.gov/1018399/
ID  - 1018399
ER  -