TY  - RPRT
TI  - Laryngoscopy grades.
AU  - S M Yentis
PY  - 1999
DO  - 10.1046/j.1365-2044.1999.01219.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10712170/
ID  - 10712170
ER  -