His is an author of over 400 publications , co-editor of nine books and holds funding from the National Cancer Institute in proton therapy .
Loeffler has spent his career in the clinical investigation of specialized radiation delivery technologies such as stereotactic radiation and proton therapy .
Loeffler 's is Loeffler author of over 400 publications , co-editor of nine books and holds funding from the National Cancer Institute proton therapy   therapy .
Loeffler has spent his career in the clinical investigation of specialized radiation delivery technologies such as stereotactic radiation and proton therapy .