title: [OBSERVATIONS ON RELAPSING FEVER].
mesh_terms: D000818:Animals; D010118:Oxytetracycline; D012061:Relapsing Fever; D013142:Spirochaeta; D013987:Ticks
chemical_list: D010118:Oxytetracycline
keywords: OXYTETRACYCLINE; RELAPSING FEVER; SPIROCHAETA; TICKS