title: From irritable heart to mitral valve prolapse--World War I, the British experience and Thomas Lewis.
mesh_terms: D002309:Cardiology / Q000266:history*; D049673:History, 20th Century; D006772:Hospitals, Military / Q000266:history; D008945:Mitral Valve Prolapse / Q000266:history*; D009449:Neurocirculatory Asthenia / Q000266:history*; D012106:Research; D006113:United Kingdom; D014857:Warfare