Reviewers' comments:

Reviewer #1: Even if the paper does not represent a milestone in the field, i think it include intersting and new achievements while I do not see now any pitfall that would make its scientific validity doubt.
The authors have not cited papers from multiple data bases and all references are from science direct- no more than 15% can be from science direct

the authors also have not included many latest papers published in 2016-2017

if they are able to do the above they should resubmit as a fresh submission 返回小木虫查看更多