https://www.selleckchem.com/pr....oducts/phenol-red-so
comes research. The review will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER CRD42019133296. © Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVES GoodSAM is a mobile phone app that integrates with UK ambulance services. During a 999 call, if a call handler diagnoses cardiac arrest, nearby volunteer first responders registered with the app are alerted. They can give cardiopulmonary resuscitation (CPR) an