Who is educating other surgeons in BBL?

I live in Europe, and I have been waiting years for the doctors to preform BBL in my country. Before they only did the surgery with implants, but they just started doing it with fat grafting with WaterJet. I just put down a deposit and will be going for a consultation with a doctor soon. But who is educating the surgeons, and what would be the right questions to ask a doctor who just started performing BBL?

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