The Role of Physician Champions_Michael van Duren, MD The Role of Physician Champions_Michael van Duren, MD Share: Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.