1. Double-blind trial to compare ampicillin, cephalexin, co-trimoxazole and trimethopriin in treatment of urinary infection;Brumfitt;Br Med J,1972
2. Comparison of long-term low-dosage nitrofurantoin. methenaninc hippurate. trimethoprim and Trimethoprim-sulfamethoxazole in the control of recurrent urinary tract infection;Kasancn;Ann Clin Res,1974
3. A cooperative controlled study of the use of trimethoprirrn-sulfamethoxazole in chronic urinary tract infection;Gleckman;J Infect Dis (Suppl),1973
4. Trinethoprim in the treatment and longterm control of urinary infection;Kasanen;Scand J Infect Dis,1974
5. Combined antibacterial action in yitro of trimethoprim and sulfonamides;Bushyby;Postgrad Med J,1969