November 28, 2019
BMJ Open. 2019 Nov 26;9(11):e032967. doi: 10.1136/bmjopen-2019-032967. ABSTRACT OBJECTIVE: This study aimed to assess the benefits of adding a physician-staffed ambulance to bystander-witnessed out-of-hospital cardiac arrest using a community-based registry. DESIGN: Population-based, retrospective cohort study. SETTING: An urban city with approximately 800 000 residents. PARTICIPANTS: Patients aged ≥18 years with bystander-witnessed out-of-hospital cardiac arrests of...
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