1 Division of Cardiology, Duke University School of Medicine, Durham, NC, USA. Electronic address: [email protected].
2 Department of Medicine, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan.
3 Heart Failure and Biomarker Trials, Baim Institute for Clinical Research; Cardiology Division, Massachusetts General Hospital; Harvard Medical School; Boston, MA.
4 Baylor Scott and White Research Institute, Dallas, Texas, USA.
5 Baylor Scott and White Research Institute, Dallas, Texas, USA; Texas A&M University Health Science Center College of Medicine, Dallas, Texas, USA.
6 Department of Medicine and Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
7 Baylor Scott and White Research Institute, Dallas, Texas, USA; Department of Medicine, University of Mississippi School of Medicine, 2500 N State St, Jackson, MS, USA. Electronic address: [email protected].