Lewis KH, Arterburn DE, Zhang F, Callaway K, Wallace J, Fernandez A, Ross-Degnan D, Wharam JF. Comparative Effectiveness of Vertical Sleeve Gastrectomy Versus Roux-en-Y Gastric Bypass for Diabetes Treatment: A Claims-based Cohort Study. Ann Surg. 2021 05 01; 273(5):940-948.