Etiology of Acute Diarrhea in Tunisian Children with Emphasis on Diarrheagenic Escherichia coli: Prevalence and Identification of E. coli Virulence Markers - Ben Salem-Ben Nejma, Imen; Hassine Zaafrane, Mouna; Hassine, Fredj; Sdiri-Loulizi, Khira; Ben Said, Moncef; Aouni, Mahjoub; Mzoughi, Ridha (Iranian Journal of Public Health)