TY  - RPRT
TI  - A grading system for direct laryngoscopy.
AU  - T M Cook
PY  - 1999
DO  - 10.1046/j.1365-2044.1999.0907f.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10995154/
ID  - 10995154
ER  -