1. Global Health Directorate, Indus Health Network, Karachi, Pakistan, Interactive Research and Development Global, Singapore, Yale Institute for Global Health, New Haven, CT, USA
2. Global Health Directorate, Indus Health Network, Karachi, Pakistan
3. Institute of Chest Diseases Kotri, Kotri, Pakistan
4. Interactive Research and Development Global, Singapore, Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, Center for Global Health Delivery, Harvard Medical School, Boston, MA
5. Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, Center for Global Health Delivery, Harvard Medical School, Boston, MA, Division of Global Health Equity, Brigham and Women´s Hospital, Boston, MA, USA
6. Interactive Research and Development Global, Singapore