1. Medical College, Ziauddin University, Karachi, Pakistan
2. Medical College, Riphah International University, Rawalpindi, Pakistan
3. Orthopaedic Trauma Service, Florida Orthopaedic Institute, Tampa, Florida, USA
4. Research and Publications, Fatima Jinnah Medical University, Lahore, Pakistan
5. Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
6. Dr. Ruth K. M. Pfau Civil Hospital, Karachi, Pakistan
7. Section of Pulmonary and Critical Care Medicine, Department of Medicine, Aga Khan University Hospital, Karachi, Pakistan
8. Allergy, Immunology and Pulmonology, Universidad Espíritu Santo, Samborondón, Ecuador