mohammad maniey ahvaz jundishapur university of medical sciences, ahvaz, iran. emergency ward dezful ganjavian hospital, dezful, ir iran sharif maraghi department of parasitology and mycology, ahvaz jundishapur university of medical sciences, infectious and tropical diseases research center, ahvaz, ir iran komeil mazhabjafari ahvaz jundishapur university of medical sciences, student research committee jundishapur university of medical sciences, ahvaz, ir iran jamil sadeghifar department of health care management, school of health, tehran university of medical sciences, tehran, ir iran