TY  - RPRT
TI  - Modular approach to CPR training.
AU  - T J Herrin
AU  - P F Norman
AU  - C Hill
AU  - R Crosby
PY  - 1980
DO  - 10.1097/00007611-198006000-00018
UR  - https://pubmed.ncbi.nlm.nih.gov/7394596/
ID  - 7394596
ER  -