What is your subspecialty?

"My subspecialty is pediatric heart surgery. I chose that subspecialty because my younger brother was born prematurely with an obstructed, total anomalous pulmonary venous return. The doctors said he would die within hours if he did not have surgery. I was nine when my brother was born, and I remember being with my family at the hospital when the thoracic surgeon came out and said my baby brother did very well with the surgery and he had the potential for lifelong, normal cardiac function. I decided then that I wanted to pursue a career as a thoracic surgeon and help save the lives of other family's loved ones."