title: Letter to Lois Jane Heller.
authors.forename: Robert E
authors.initials: RE
authors.lastname: Schuhmann
mesh_terms: D001026:Coronary Artery Bypass / Q000266:history*; D004501:Education, Medical / Q000266:history*; D049673:History, 20th Century; D010827:Physiology / Q000193:education / Q000266:history*