1. Mayo Clinic; Evidence-based Practice Center; 1919 3rd Ave NE Apt 2 Rochester MN USA 55906
2. University of Damascus; Faculty of Medicine; Damascus Syrian Arab Republic
3. Damascus University; Almwasat University Hospital; Damascus Syrian Arab Republic
4. University of Damascus; Children's University Hospital; Damascus Syrian Arab Republic
5. Mayo Clinic; Rochester USA
6. Mayo Clinic; Preventive Medicine Fellowship, The Knowledge and Encounter Research Unit; 200 First Street SW Rochester MN USA 55905