@misc{miscf0535a0f,
title   = {The ""four-finger ruler"" as a novel, simple and easy technique for hands placement during CPR training},
author = {Nakagawa, Naomi Kondo and Salles, Igor Caitano and Costa, Marilia Melli and Pinho, Janine Lissa de and Boettiger, Bernd Walter},
year = {2023},
doi = {10.1016/j.resuscitation.2022.109683},
journal   = {Resuscitation}
}