title: Spirochetes in lesions of erythema chronicum migrans.
mesh_terms: D001170:Arthritis, Infectious / Q000382:microbiology*; D004890:Erythema / Q000382:microbiology*; D005260:Female; D006801:Humans; D008297:Male; D013145:Spirochaetales Infections / Q000175:diagnosis*