TY  - RPRT
TI  - Ambu valve: danger of wrong assembly.
AU  - A W Grogono
AU  - J Porterfield
PY  - 1970
DO  - 10.1093/bja/42.11.978
UR  - https://pubmed.ncbi.nlm.nih.gov/5275101/
ID  - 5275101
ER  -