IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-13-8-57768 Original Research Paper Determination Of Setup Error And Planning Target Volume Margin With Daily Onboard Imaging In Patients Of Head And Neck And Rectal Cancers Receiving IMRT : A Single Institution Study From North East India. Diplu Choudhury Dr. Dr Kaushik Baiswas Dr. Dr Devajit Choudhury Dr. August 2024 13 8 01 02 ABSTRACT