Objective This systematic review and meta-analysis was performed to evaluate the efficacy of using a helmet for oxygen therapy in critically ill patients with respiratory failure. Methods The Cochrane Library. Embase. and PubMed databases were searched for all randomized controlled trials (RCTs) examining the efficacy of a helmet versus standard oxygen therapy or a mask in critically ... https://www.bekindtopets.com/quick-find-Premio-Tab-7-1-limited-choice/