1. The treatment of empyema by valvular drainage: a paper read before the Medical Society of the State of New York, February 4, 1880 Author(s): Phelps, A. M. (Abel Mix), 1851-1902 Publication: Syracuse, N.Y. : Standard Steam Book and Job Printing House, 1880 Subject(s): Empyema, Pleural -- therapyDrainage -- methodsTherapeutic Irrigation