Average Weight Loss from baseline; meta-analysis of various studies up to 4 years in length.1. Phillips E, Ponce J, Cunneen SA, et al. Surg Obes Rel Dis. 2009; 5:588-597. P<0.0012. Fischer L, et al. Obes Surg. 2012 May;22(5):721-31.3. O’Brien PE, et al. Obes Surg. 2006; 16(8):1032-1040.