1. An inaugural dissertation on the putrid ulcerous sore throat: submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania, for a degree of Doctor in Medicine, on the 8th day of May, 1793 Author(s): Johnson, Thomas, 1766-1831 Publication: Philadelphia : Printed by Parry Hall, no 149, Chesnut Street, between Fourth and Fifth Streets, MDCCXCIII [1793] Subject(s): Pharyngitis