a controlled double-blind stratified trial was carried out in a village in southern iran to assess the efficacy of family-based intermittent therapy of hyperendemic trachoma with topical oxytetracycline oily suspension twice daily for 7 days each month , or oral doxycycline 5 mg per kilogram of body weight once a month , in comparison with a control group which received vitamin pills once a month .
C0040592
trachoma
C0013090
doxycycline