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Williams-Kerver GA, Steffen KJ, Smith KE, Cao L, Crosby RD, Engel SG.Williams-Kerver GA, et al. Among authors: smith ke.Obes Surg. 2020 Jun;30(6):2382-2387. doi: 10.1007/s11695-020-04503-6.Obes Surg. 2020.PMID: 32125646Free PMC article.