1. Tumor of the hard palate: acute appendicitis : perinephritic abscess : clinical lecture delivered at the Jefferson Medical College Hospital Author(s): Keen, William W. (William Williams), 1837-1932 Publication: [Philadelphia? : s.n., 1893?] Subject(s): Appendicitis -- surgeryPalatal Neoplasms -- surgeryKidney Diseases -- surgerySurgical Procedures, Operative -- methods