1. Giardiasis surveillance––United States, 2011–2012;MMWR Surveill Summ,2015
2. Foodborne illness acquired in the United States–major pathogens;Emerg Infect Dis,2011
3. Giardiasis surveillance––United States, 2009–2010;MMWR Surveill Summ,2012
4. Surveillance for travel-related disease––GeoSentinel Surveillance System, United States, 1997–2011;MMWR Surveill Summ,2013
5. Irritable bowel syndrome: a clinical review;JAMA,2015