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Cohort composition and study design. (A) From the 53 patients initially selected, 44 were included, 32 underwent a vertical sleeve gastrectomy (VSG) and 12 a Roux-en-Y gastric bypass (RYGB). (B) Before surgery, patients were subjected to 3 successive sessions (S1–S3) including a clinical exploration and the determination of sucrose and linoleic acid (LA) perception thresholds. The same exploratory design was used 6 months after surgery.
