RT Journal Article SR Electronic T1 “The Noninvasive Ventilation Outcomes (NIVO) score: prediction of in-hospital mortality in exacerbations of COPD requiring assisted ventilation.” Tom Hartley, Nicholas D. Lane, John Steer, et al. Eur Respir J 2021; 58: 2004042 JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2054042 DO 10.1183/13993003.54042-2020 VO 58 IS 5 YR 2021 UL http://erj.ersjournals.com/content/58/5/2054042.abstract AB