1. Department of Cardiothoracic Surgery, Nizam's Institute of Medical Sciences, Panjagutta, Hyderabad, Telangana, India
2. Department of Pulmonary Medicine, Nizam's Institute of Medical Sciences, Panjagutta, Hyderabad, Telangana, India
3. Department of Radiology and Imaging, Nizam's Institute of Medical Sciences, Panjagutta, Hyderabad, Telangana, India
4. Apollo Hospitals, Vishakapatnam, Andhra Pradesh, India