How was Alexis Carrel awarded the Noble Prize in Physiology or Medicine?

Name: Alexis Carrel.
Country: France.
Date of Birth: 28 June 1873.
Died: 5 November 1944.
Education: University of Lyon.
Subjects Of Study: Dakin’s solution antiseptic tissue.
Known as: New techniques in vascular sutures and pioneering work in transplantology and thoracic surgery.
Noble Prize Year: Nobel Prize for Peace in 1912, in recognition of his work on vascular sutures and the transplantation of blood vessels and organs.