title: In memoriam, Ivan D'Cruz, M.D., senior associate editor and editor.
mesh_terms: D002309:Cardiology / Q000266:history*; D004452:Echocardiography / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D010506:Periodicals as Topic / Q000266:history*; D014481:United States