intervention including text message (TM) alert system and bystander cardiopulmonary
resuscitation (CPR) and outcomes of out-of-hospital cardiac arrest (OHCA). Methods A
population intervention study was conducted for resuscitation-attempted OHCAs from 2013
to 2017 in selected districts in Seoul, Korea. A bundle intervention consisting of three
components was implemented in May 2015: 1) community CPR training and organizing …