A prospective, randomized, double-blind study of trimethoprim-sulfamethoxazole for prophylaxis of infection in renal transplantation: clinical efficacy, absorption of trimethoprim-sulfamethoxazole, effects on the microflora, and the cost-benefit of prophylaxis. - Fox,B.C.; Sollinger,H.W.; Belzer,F.O.; Maki,D.G. (Am J Med, 1990)