1. Persistent diarrhoea in children in developing countries: memorandum from a WHO meeting;Anonymous;Bull World Health Organ,1988
2. The magnitude of the global problem of diarrhoeal disease: a ten-year update;Bern;Bull World Health Organ,1992
3. Pathogens that cause traveler's diarrhea in Latin America and Africa;Black;Rev Infect Dis,1986
4. Epidemiology of rotavirus diarrhoea in Africa: a review to assess the need for rotavirus immunization;Cunliffe;Bull World Health Organ,1998
5. Review of probiotics available to modify gastrointestinal flora;Gismondo;Int J Antimicrob Agents,1999