title: Reply to the comments on "Setup error analysis in helical tomotherapy based image-guided radiation therapy treatments" by Slav Yartsev.
authors.affiliation: Department of Medical Physics, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Bhagyalakshmi Akkavil
authors.initials: BA
authors.lastname: Thondykandy
authors.affiliation: Department of Radiation Oncology, Advanced Centre for Treatment Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, Maharashtra, India.
authors.forename: Jamema V
authors.initials: JV
authors.lastname: Swamidas
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Jay Prakash
authors.initials: JP
authors.lastname: Agarwal
authors.affiliation: Department of Radiation Oncology, Advanced Centre for Treatment Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, Maharashtra, India.
authors.forename: Tejpal
authors.initials: T
authors.lastname: Gupta
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Sarbani G
authors.initials: SG
authors.lastname: Laskar
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Umesh
authors.initials: U
authors.lastname: Mahantshetty
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Shrinivasan S
authors.initials: SS
authors.lastname: Iyer
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Indrani U
authors.initials: IU
authors.lastname: Mukherjee
authors.affiliation: Department of Radiation Oncology, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Shyam K
authors.initials: SK
authors.lastname: Shrivastava
authors.affiliation: Department of Medical Physics, Tata Memorial Hospital, Navi Mumbai, Maharashtra, India.
authors.forename: Deepak D
authors.initials: DD
authors.lastname: Deshpande