Hi Youknow I, suggest you contact Medical Tourism Corporation (MTC), they can get you in touch with his past Sleeve clients. Also you can consider viewing his CV & video interview on their site link Dr. Thomas Walter Umbach, Center of Excellence - Bariatric Weight Loss Surgeon, performs Gastric Lap Band, Sleeve Resection & Rose procedure in Las Vegas(Henderson), NV USA
For fast communication/replies suggest to contact MTC, as they facilitate his patients trip & communication.
Wish you the very best.
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