Review for 10.1186/s12876-021-01851-0 (2021)

Reviewer’s report
Title: 
Comparing neoadjuvant long-course chemoradiotherapy with short-course
radiotherapy in rectal cancer
Version: 
0 
Date: 
09 Nov 2020
Reviewer's report:
-Add the unique of this study compared to other studies discuss the same issue.
-Image analysis done by both observers with inter-observer agreement
-Discus role of imaging in diagnosis of cancer colon using these ref
-Abd-El Khalek Abd-ALRazek A, Fahmy DM. Diagnostic Value of Diffusion-
Weighted Imaging and Apparent Diffusion Coefficient in Assessment of the
Activity of Crohn 
Disease: 1.5 or 3 T. J Comput Assist Tomogr 2018;42:688-
696.
-Abdel Razek AA, Abu Zeid MM, Bilal M, Abdel Wahab NM. Virtual CT
colonoscopy versus conventional colonoscopy: a prospective study.
Hepatogastroenterology 2005;52:1698-702.
-Rajendran H, Abdel Razek A, Abubacker S. Multimodal imaging of fibrosing
mesenteric tuberculosis. Radiology Case Reports 2019;14:920-925.
-English language correction through the manuscript
-Update of references
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
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