TravDoc: Traveler's Diarrhea - Recommendations from a travel medicine consultation service. - http://www.travdoc.com/articles/28.html
MayoClinic.com: Traveler's Diarrhea - Features signs, symptoms, causes, prevention, and treatment. - http://www.mayoclinic.com/health/travelers-diarrhea/DS00318
MedicineNet: Traveler's Diarrhea - Consumer information on travelers diarrhea, includes symptoms, causes, prevention, diagnosis and treatment. - http://www.medicinenet.com/travelers_diarrhea/article.htm
Travellers Diarrhea - A comprehensive guide designed to assist Canadian travelers in determining what precautions may be considered when traveling to the developing world. From Aventis Pasteur Limited. - http://www.travellersdiarrhea.com
MDTravel Health - Travelers' Diarrhea - Includes causes, symptoms, prognosis, prevention, and treatment. - http://www.mdtravelhealth.com/infectious/travelers_diarrhea.html
InteliHealth: Traveler's diarrhea - Factsheet with prevention, complications, symptoms, causes, and treatment. - http://www.intelihealth.com/IH/ihtIH/WSIHW000/9339/11048.html
Traveler's Diarrhea: The Merck Manual - Usually caused by bacteria in local water. Features causes, symptoms, treatment, and prevention. - http://www.merck.com/mrkshared/mmanual/section3/chapter28/28g.jsp