Author(s) affiliations:Juma Al-Kaabi1, Fatma Al-Maskari2, Hussein Saadi1, Bachar Afandi3, Hasratali Parkar3 and Nicolaas Nagelkerke2
1Department of Internal Medicine, Faculty of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates.
2Department of Community Medicine, Faculty of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates.
3JHMI-Tawam Hospital, Al-Ain, United Arab Emirates