Kumar Ritesh, Khosla Divya, Kapoor Rakesh, Bharti Shreekant
Department of Radiotherapy and Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India,
J Gastrointest Cancer. 2014 Dec;45 Suppl 1:2-5. doi: 10.1007/s12029-013-9517-3.