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Schulman DA, Piquette CA, Alikhan MM, Freedman N, Kumar S, McCallister J, Mokhlesi B, Santamauro J, Singas E, Stern E, Strohl KP, Casey KR.Schulman DA, et al. Among authors: kumar s.Chest. 2019 Mar;155(3):554-564. doi: 10.1016/j.chest.2018.10.024. Epub 2018 Oct 28.Chest. 2019.PMID: 30392792Free PMC article.