From Bogota Colombia He earned his medical degree at the University of Rosario and completed his residency in plastic surgery at Rosario – Saint Joseph Hospital in Bogotá, Colombia. Dr. Hoyos designed the Vaser High Definition Technique for Lipoplasty (VHD). This refined liposuction procedure introduces an esthetic extraction mixture for superficial fat, deep fat, intermediate fat, and combined fat grafting using the VASER technology to produce muscle definition in men and women. Dr. Hoyos and colleagues have performed more than 2,500 procedures VHD with predictable, consistent, and reliable results.