1. Department of Respiratory Medicine, Kasturba Medical College Hospital, Mangalore, India
2. Department of Respiratory Medicine Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
3. Department of Cardiothoracic Surgery, Kasturba Medical College Hospital, Mangalore, India
4. Department of Pathology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India