title: Erosive syphilitic gastritis: dark-field and immunofluorescent diagnosis from biopsy specimen.
mesh_terms: D001706:Biopsy; D005455:Fluorescent Antibody Technique; D005756:Gastritis / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010400:Penicillin G / Q000627:therapeutic use; D013270:Stomach / Q000382:microbiology; D013587:Syphilis / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology
chemical_list: D010400:Penicillin G