1 Institute of Community and Public Health, Birzeit University, Birzeit, West Bank, occupied Palestinian territory. Electronic address: rita@birzeit.edu.
2 Institute of Community and Public Health, Birzeit University, Birzeit, West Bank, occupied Palestinian territory.
3 Faculty of Economics, Cairo University, Cairo, Egypt.
4 Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon.
5 Social Research Center, American University in Cairo, New Cairo Campus, Cairo, Egypt.
6 Arab States Regional Office, United Nations Population Fund, Cairo, Egypt.