| Name | Info | Provider | Link |
|---|---|---|---|
| CPR | free resource | MedlinePlus Health Information | https://medlineplus.gov/cpr.html |
| free resource | Scientific Electronic Library Online | https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0080-62342018000100458&lng=en&nrm=iso&tlng=en |