Dr. Hasselgren practices surgery at the Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, where he is the Director of Endocrine Surgery and Vice Chairman for Research. He is the George H.A. Clowes Professor of Surgery at the Harvard Medical School.


Dr. Hasselgren has a long-standing research interest and has conducted NIH-supported research for almost 30 years. His research has resulted in multiple scientific publications related to both basic and clinical research.


Dr. Hasselgren recently published a book, “BODY LANGUAGE. From Head to Toe”, in which he describes the common use of body parts and the importance of the anatomy in both the written and the spoken languages.