Not even 12 hours ago Dr. Antonio Alcaraz (Castril, Granada, 62 years old) was in the operating room transplanting a kidney and at the end of this interview he will return to the operating room to implant another. It doesn't stop. “The operating room is somewhat addictive and the transplant even more so,” he explains. The urologist, responsible for the kidney transplant program at the Hospital Clínic of Barcelona, has been performing these interventions for three decades and already has more than 1,600 as the first surgeon. “I am probably the surgeon who has transplanted the most organs” in Spain, he resolves. Play with an advantage: “There is one liver; kidneys, two,” he jokes. And its hospital is the Spanish center that more kidney transplants has made: about 5,000.