M. Rostami Nejad, E. Nazemalhosseini Mojarad, M. Fasihi Harandi, M. A. Pourhoseingholi, G. R. Mowlavi, and M. R. Zali, “Prevalence of intestinal parasites in patients with gastrointestinal symptoms by focus on soil-transmitted helminthes infection”, Gastroenterol Hepatol Bed Bench, vol. 3, no. 4, Oct. 2010.