TY  - RPRT
TI  - An unusual airway problem.
AU  - G R Butlin
AU  - G R Sellery
AU  - W E Spoerel
PY  - 1970
DO  - 10.1007/bf03004530
UR  - https://pubmed.ncbi.nlm.nih.gov/5414111/
ID  - 5414111
ER  -