1 Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. wadden@pennmedicine.upenn.edu.
2 Johns Hopkins School of Nursing, Baltimore, MD, USA.
3 Division of Endocrinology and Metabolism, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.
4 Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
5 Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA.
6 Department of Medicine, Division of Diabetes, Endocrinology & Metabolism, Department of Pediatrics, Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA.
7 Vanderbilt Weight Loss Clinics, Vanderbilt University Medical Center, Nashville, TN, USA.
8 Obesity Group, Department of Endocrinology, Universidade de São Paulo, São Paulo, Brazil.