ABSTRACT
Knowing that Professor Blalock did not have the time to dedicate himself to the laboratory and that Thomas had been running the surgical experiments for several years already, the only solution could arise exclusively from Thomas’s hands and mind. As a consequence, he entrusted himself with dedicated effort to reflect on the best tetralogy model he could arrive at in the old Hunterian Laboratories. Thomas reviewed pathological specimens with Dr. Taussing, analyzed the
anatomical anomalies seen in Fallot patients and began to structure a series of experiments for a reproducible cyanotic surgical model in dogs.1
