1. On the occurrence of ulcers resulting from spontaneous gangrene of the skin during the later stages of syphilis, and their relation to syphilis Author(s): Klotz, Hermann G. (Hermann Gustav), 1844-1928 author Publication: [New York?] : D. Appleton & Co., [1887?] Subject(s): Syphilis -- complicationsSkin Ulcer -- etiologyGangrene