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PERIODICALS
- "Constipation, Laxatives and Dietary Fiber." Health Tips (April 1993): 9.
- "Overuse Hazardous: Laxatives Rarely Needed." (Includes related article on types of laxatives.) FDA Consumer (April 1991): 33.
ORGANIZATIONS
- National Digestive Diseases Information Clearinghouse. 2 Information Way, Bethesda, MD 20892-3570. nddic@aerie.com. <http://www.niddk.nih.gov/Brochures/NDDIC.htm.
- [Article by: Samuel D. Uretsky, PharmD]




