1Center for Public Health, Medical University Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
2Department of Internal Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
3Institute for Pathophysiology and Allergy Research, Medical University Vienna, Vienna, Austria
4The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
5Department of Microbiology, Sabzevar University of Medical Sciences, Sabzevar, Iran
6Department of Biostatistics and Epidemiology, Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
7Paramedicine College, Sabzevar University of Medical Sciences, Sabzevar, Iran
8Department of Obstetrics and Gynecology, Mobini Hospital, Sabzevar University of Medical Sciences, Sabzevar, Iran