title: Reply: To PMID 19272548.
authors.affiliation: Pulmonary and Critical Care Medicine, Weill Medical College of Cornell University, 635 Madison Ave, Ste 1101, New York, NY10022. Electronic address: laura.jk.libby@gmail.com.
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Libby
authors.affiliation: Pulmonary and Critical Care Medicine, Weill Medical College of Cornell University, 635 Madison Ave, Ste 1101, New York, NY10022.
authors.forename: Brian D
authors.initials: BD
authors.lastname: Gelbman
authors.affiliation: Pulmonary and Critical Care Medicine, Weill Medical College of Cornell University, 635 Madison Ave, Ste 1101, New York, NY10022.
authors.forename: Nasser K
authors.initials: NK
authors.lastname: Altorki
authors.affiliation: Pulmonary and Critical Care Medicine, Weill Medical College of Cornell University, 635 Madison Ave, Ste 1101, New York, NY10022.
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Libby
mesh_terms: D001706:Biopsy / Q000379:methods*; D005260:Female; D006801:Humans; D016867:Immunocompromised Host; D008297:Male; D010362:Patients' Rooms; D012121:Respiration, Artificial; D012128:Respiratory Distress Syndrome / Q000175:diagnosis* / Q000209:etiology*