Lal, Chitra
Kumbhare, Suchit http://orcid.org/0000-0002-5666-8021
Strange, Charlie http://orcid.org/0000-0002-8109-8067
Article History
Received: 12 June 2019
Revised: 21 August 2019
Accepted: 7 September 2019
First Online: 13 September 2019
Compliance with ethical standards
:
: Dr. Kumbhare does not have any conflicts of interest. Dr. Lal is a consultant for Jazz pharmaceuticals and Cipla pharmaceuticals. Dr. Charlie Strange has current, past, or pending grants in COPD from the Alpha-1 Foundation, Adverum, BTG, CSL Behring, Grifols, NIH, MatRx, Novartis, Pulmonx, Shire, and Vertex. He consults for AstraZeneca, Boehringer-Ingelheim, CSL Behring, Grifols, and Uptake Medical on COPD.
: This article does not contain any study with human subjects or animals performed by any of the authors.
: This study did not qualify as research on human subjects as determined by the Medical University of South Carolina’s Institutional Review Board (IRB), and hence IRB approval was not needed. Additionally, National Health and Nutrition Examination Survey (NHANES) is a publicly available database.