title: Serum level studies at varying intervals after the oral administration of tetracycline hydrochloride-500 mg.
mesh_terms: D000284:Administration, Oral; D006801:Humans; D006851:Hydrochloric Acid / Q000008:administration & dosage; D013752:Tetracycline / Q000008:administration & dosage / Q000097:blood*
chemical_list: D013752:Tetracycline; D006851:Hydrochloric Acid