Johnston, Kenton J.
Wen, Hefei
Schootman, Mario
Joynt Maddox, Karen E.
Article History
Received: 18 August 2018
Revised: 4 December 2018
Accepted: 4 March 2019
First Online: 25 April 2019
Compliance with Ethical Standards
: This study was approved by the Saint Louis University Institutional Review Board.
: Dr. Joynt Maddox does work under contract with the US Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation. All remaining authors declare that they do not have a conflict of interest.
: Neither Saint Louis University nor the NHLBI had any role in the design and conduct of the study; analysis or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Free to read: This content has been made available to all.