title: Letter: Secondary syphilis and hepatitis.
mesh_terms: D002006:Brucellosis / Q000175:diagnosis; D003937:Diagnosis, Differential; D005335:Fever of Unknown Origin; D006505:Hepatitis / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013587:Syphilis / Q000175:diagnosis*; D013588:Syphilis Serodiagnosis