1 Department of Healthcare Profession ((DHP), Ministry of Public Health, Qatar / ECPE, Harvard TH Chan School of Public Health, USA; ECPE, Harvard TH Chan School of Public Health, Boston, MA. Electronic address: danial.hassan51@yahoo.com.
2 Department of Pediatrics, Allied Hospital, Faisalabad, Pakistan.
3 California Institute of Behavioral Neurosciences and Psychology, USA.
4 Department of Nursing, Hamad Medical Corporation.
5 Department of Gastroenterology Southampton NHS Foundation Trust, Southampton, Hampshire, UK.
6 Department of Statistics, American University in Cairo.