Key points are not available for this paper at this time.
1Durham VA Medical Center, Durham, North Carolina, USA 2Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina, USA 3Office of Safety and Medical Operations, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA Correspondence: Ziad F. Gellad, MD, MPH, Duke Clinical Research Institute, Duke University School of Medicine, 2400 Pratt Street, Rm. 0311, Box 3850, Durham, North Carolina 27705, USA. E-mail: email protected Guarantor of the article: Ziad F. Gellad, MD, MPH. Specific author contributions: Ziad F. Gellad and Theodore Eugene Day contributed to manuscript design, manuscript drafting, critical revision, and approval of the final draft. Financial support: Gellad's effort is funded by Veterans Affairs Health Services Research and Development Career Development Award (CDA 14-158). Potential competing interests: None.
Gellad et al. (Tue,) studied this question.