Real-time compression feedback for patients with in-hospital cardiac arrest: a multi-center randomized controlled clinical trial oleh Reza Goharani, Amir Vahedian-Azimi, Behrooz Farzanegan, Farshid R. Bashar, Mohammadreza Hajiesmaeili, Seyedpouzhia Shojaei, Seyed J. Madani, Keivan Gohari-Moghaddam, Sevak Hatamian, Seyed M. M. Mosavinasab, Masoum Khoshfetrat, Mohammad A. Khabiri Khatir, Andrew C. Miller, for the MORZAK Collaborative