Mechanical versus manual chest compressions in the treatment of in-hospital cardiac arrest patients in a non-shockable rhythm: a randomised controlled feasibility trial (COMPRESS-R... oleh Keith Couper, Tom Quinn, Ranjit Lall, Anne Devrell, Barry Orriss, Kate Seers, Joyce Yeung, Gavin D. Perkins, On behalf of the COMPRESS-RCT collaborators