Assoc.Prof. Altan Kır is a Thoracic Surgery and Robotic Surgery specialist, as well as one of the top lung cancer doctors. He has been a thoracic surgeon at Anadolu Medical Center since 2007 and is a member of the Turkish Thoracic Surgery Society, the European Society of Thoracic Surgeons, and the Thorax Society.
Dr. César Canales has led General and Digestive Surgery and the Laparoscopic and Robotic Surgery Unit at Hospital Ruber Internacional (Madrid) since 2015. He is a General and Digestive Surgeon with over 30 years of experience. He specializes in laparoscopic and Da Vinci robotic surgery for complex abdominal, oncologic, and abdominal wall cases.
He holds a PhD (cum laude, UAM) and an MD (with honors, UCM). He completed his specialist training at Hospital General Universitario Gregorio Marañón. He is also certified by the Military Medical Corps. He has authored over 70 publications and 12 book chapters, including the Manual of Surgery (McGraw-Hill). He has served as faculty in more than 16 courses. Awards include Forbes Top 100 Doctors (2024), Top 5 General and Digestive Surgeons in Spain (2021–2024), La Razón Doctor of the Year (2024), and El Confidencial Best Doctors in Spain (2025).