My drive is doctor means teacher. 저는 계속해서 환자를 가르치고 환자들과 함께 시간을 보내며 가능한 한 많은 정보를 제공하고 싶다고 코발은 설명합니다. While rheumatology was a young subspecialty when he was just starting out, like all of medicine, it has evolved over the years.