1. Cook GC. Manson's tropical medicine, 20th Ed. London : Saunders, 1996;1121–1129.
2. Jong E McMullen R. The travel & tropical medicine manual. Philadelphia : Saunders, 1995:55–58.
3. WHO model prescribing information: drugs used in parasitic infections. World Health Organization: Geneva, 1990:32–34.
4. Centers for Disease Control. Health information for international travel. U.S. Department of Health and Human Services, 1996.
5. Physicians desk reference. Montvale, NJ : Medical Economics, 1997:2301–2302.