title: History of the roentgen ray in the study of the heart.
authors.forename: H
authors.initials: H
authors.lastname: ROESLER
mesh_terms: D006321:Heart / Q000000981:diagnostic imaging*; D011859:Radiography; D014965:X-Rays / Q000266:history*
keywords: HEART/roentgenography; ROENTGEN RAYS/history