[1
]
Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
[2
]
Department of Family and Community Medicine, Faculty of Medicine and Health Sciences,
An-Najah National University, Box 7, 707, Nablus, Palestine.
[3
]
Palestine Diabetes Institute, Al-Bireh, West-Bank Palestine.
[4
]
Department of Family Medicine & School of Public Health, Brown University, Providence,
RI USA.