1. Department of Research and Education, Medical Research Circle, Bukavu, Democratic Republic of Congo
2. Department of Nursing Science, University of Bamenda, Bambili, Cameroon, Central Africa
3. Atal Bihari Vajpayee Institute of Medical Sciences and Dr Ram Manohar Lohia Hospital, New Delhi, India
4. Jomo Kenyatta University of Agriculture and Technology, Kenya
5. Department of Gastroenterology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, Norfolk, United Kingdom
6. Kamuzu University of Health Sciences, Blantyre, Malawi
7. Faculty of Preventive Medicine, IM Sechenov University, Moscow, Russia
8. Rawalpindi Medical University, Rawalpindi
9. Shifa Tameer e Millgat University, Shifa International Hospital, Islamabad, Pakistan