dpdx 2009"Enterobiasis". DPDx. Division of Parasitic Diseases, Centers for Disease Control and Prevention. Archived from the original on 27 November 2013. Retrieved 8 April 2009.
dpdx 2009"Enterobiasis". DPDx. Division of Parasitic Diseases, Centers for Disease Control and Prevention. Archived from the original on 27 November 2013. Retrieved 8 April 2009.