Review for 10.1186/s12876-018-0852-5 (2018)

Reviewer’s report
Title:  Gall bladder wall thickening as non-invasive screening parameter for esophageal varices – a
comparative endoscopic - sonographic study
Version: 1 Date: 27 Jun 2018
Reviewer: Hitoshi Maruyama
Reviewer's report:
Comment
Although the revised version seems to be improved, there are still several concerns.
Please refer to the comments and make revisions.
Page 2
Please add an abbreviation for GI
Page 4
They added the data using platelet count/spleen diameter ratio.
It should be explained in the Method section with the US measurement of spleen size.
Page 5
"Therefore, further prospective studies are required to assess the value of portal vein velocity as non-
invasive parameter for the presence of esophageal varices."
Please add following reference paper for the sentence above and discuss.
Maruyama H, Kobayashi K, Kiyono S, Ogasawara S, Ooka Y , Suzuki E, Chiba T, Kato N.
Left gastric vein-based noninvasive test for esophageal varices: a same-day comparison of portal
hemodynamic assessment with endoscopic appearance. Clin Transl Gastroenterol. 2018 25;9(5):154.
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
No
Does the work include the necessary controls?
If not, please specify which controls are required in your comments to the authors.
Yes
Are the conclusions drawn adequately supported by the data shown?
If not, please explain in your comments to the authors.
Yes
Are you able to assess any statistics in the manuscript or would you recommend an additional 
statistical review?
If an additional statistical review is recommended, please specify what aspects require further 
assessment in your comments to the editors.
I am able to assess the statistics
Quality of written English
Please indicate the quality of language in the manuscript:
Needs some language corrections before being published
Declaration of competing interests
Please complete a declaration of competing interests, considering the following questions:
1. Have you in the past five years received reimbursements, fees, funding, or salary from an
organisation  that  may  in  any  way  gain  or  lose  financially  from  the  publication  of  this
manuscript, either now or in the future?
2. Do you hold any stocks or shares in an organisation that may in any way gain or lose financially
from the publication of this manuscript, either now or in the future?
3.  Do you  hold  or  are  you  currently applying  for any patents  relating  to  the  content  of the
manuscript?
4. Have you received reimbursements, fees, funding, or salary from an organization that holds or
has applied for patents relating to the content of the manuscript?
5. Do you have any other financial competing interests?
6. Do you have any non-financial competing interests in relation to this paper?
If you can answer no to all of the above, write 'I declare that I have no competing interests' below. If 
your reply is yes to any, please give details below.
I declare that I have no competing interests
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