1. Mortality by cause for eight regions of the world: global burden of disease study;Murray;Lancet,1997
2. Pathogenesis of infectious diarrhea;Stephen;Can. J. Gastroenterol.,2001
3. Antibiotic resistance in developing countries;Hart;Br. Med. J.,1998
4. National Committee for Clinical Laboratory Standards. Performance Standards for antimicrobial disk susceptibility tests, sixth ed. Approved Standards, M2-A6, NCCLS, Wayne, PA, 1997.
5. National Committee for Clinical Laboratory Standards. National Committee for Clinical Laboratory Standards: Performance standards for antimicrobial susceptibility testing; eighth informational supplement, M100-S8. NCCLS, Wayne, PA, 1998.