1 Department of Diagnostic and Interventional Radiology, All India Institute of Medical Sciences, New Delhi, 110 029, India.
2 Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India.
3 Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, 160 012, India. Pankajgupta959@gmail.com.