Hensley Matthew K, Sjoding Michael W, Prescott Hallie C
Division of Pulmonary, Allergy, and Critical Care Medicine, Unstiversity of Pittsburgh, Pittsburgh, PA.
Department of Internal Medicine, Institute for Healthcare Policy & Innovation, University of Michigan, Ann Arbor, MI.
Chest. 2021 Jan;159(1):29-33. doi: 10.1016/j.chest.2020.07.059.