Harhay Michael O, Au David H, Dell Sharon D, Gould Michael K, Redline Susan, Ryerson Christopher J, Cooke Colin R
Palliative and Advanced Illness Research (PAIR) Center and.
Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Ann Am Thorac Soc. 2020 Jun;17(6):679-682. doi: 10.1513/AnnalsATS.202002-141ED.