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About the FLAG Model Initiative

It all begins with an idea.

The FLAG model was not born from chance, but from observation—the very first step of the scientific method. At the heart of this observation were Dr Fernández Aguilar and Dr Suárez Muñoz, who noted that liver transplant recipients with poor outcomes consistently had lower levels of Factor V.

From that insight, a question emerged: could Factor V predict early graft dysfunction? This question became a hypothesis, and the hypothesis led to our first pilot study.

FLAG is the result of curiosity turned into data, and data turned into a clinical tool. It reflects how science progresses: step by step, guided by questions and fuelled by the will to improve patient care.

And like all good ideas, this is just the beginning.

Surgical team in operating room or collaborative research setting

“The important thing is not to stop questioning. Curiosity has its own reason for existing.”

— Albert Einstein

Our Team

Dr. Fernández Aguilar, MD, PhD

Clinical Inspirator and Senior Researcher of the FLAG Model

A truly well-rounded surgeon, José Luis combines technical excellence in the operating theatre with a deep commitment to patient care. He treats every member of the team—with or without scrubs—with kindness, respect, and calm leadership. Known for his patience and clarity, he teaches by example and has a natural ability to guide and inspire those around him.

He was the driving force behind the original idea that gave rise to the FLAG model. But his role didn't stop there. As a mentor, guide, and co-investigator, he has been at the heart of the project from day one—reviewing data, shaping ideas, and helping translate clinical intuition into scientific proof. He embodies the perfect bridge between bedside insight and academic rigour.

Consultant Surgeon – Esophagogastric Surgery Unit

Liver and Pancreatic Transplant Consultant

Doctor of Medicine (PhD)

Associate Lecturer in Surgery, University of Málaga

Dr. Fernández Aguilar

Dr. Sánchez González, MD, PhD

Lead Author and Principal Investigator of the FLAG Model

Claudia stands out for her curiosity and contagious energy. Always eager to learn, she approaches each case as an opportunity to grow—both clinically and scientifically. Although just at the beginning of her surgical career, she embraces hard work and seizes every opportunity to learn, contribute, and move forward. Passionate about liver transplantation and data-driven medicine, she believes that science starts with asking the right questions—and having the courage to follow where the answers lead.

She has served as the principal investigator in the studies that shaped the FLAG model, taking the seed of an idea handed to her and working to give it life and light.

General and Digestive Surgery Resident – Hepatobiliary and Pancreatic Surgery Unit

Doctor of Medicine (PhD)

Dr. Sánchez González

Dr. Sánchez Pérez, MD, PhD

Belinda is an unstoppable surgeon—driven, versatile, and constantly in motion. She has the rare ability to lead multiple projects at once, pushing forward new ideas while maintaining the highest standards in every aspect of her work. A true all-terrain force, she stands out not only for her technical skill in the operating theatre, but also for her academic commitment and natural talent as an educator. Tireless, brilliant, and deeply respected, Belinda is the kind of surgeon who makes things happen.

Consultant Surgeon & Liver and Pancreatic Transplant Consultant – Hepatobiliary and Pancreatic Surgery Unit

Doctor of Medicine (PhD)

Associate Lecturer in Surgery, University of Málaga

Dr. Sánchez Pérez

Dr. Suarez Muñoz, MD, PhD

A surgeon defined by determination and joy, Miguel Ángel brings a sense of purpose—and even delight—to the most complex and lengthy procedures. His presence lights up the operating theatre, and with each step, he radiates both warmth and kindness. He leads not only with skill, but with heart. He was one of the first to observe the clinical pattern that sparked the idea behind the FLAG model—planting the seed from which the project would grow.

Head of Section – Hepatobiliary and Pancreatic Surgery Unit

Consultant Surgeon & Liver and Pancreatic Transplant Consultant

Associate Professor of Surgery, University of Málaga

Honorary European Board in Liver Transplantation

University Expert in Minimally Invasive Surgery (Complutense University of Madrid)

Professionally accredited at EXCELLENT level by the Andalusian Agency for Healthcare Quality (ACSA)

Dr. Suarez Muñoz

"If you want to go fast, go alone. If you want to go far, go together."