Low-dose long-term systemic tetracycline therapy.
D000293:Adolescent; D004305:Dose-Response Relationship, Drug; D004352:Drug Resistance, Microbial; D006801:Humans; D008134:Long-Term Care; D008297:Male; D013752:Tetracycline / Q000008:administration & dosage*
D013752:Tetracycline