What is the main question the study attempts to answer?
What is (are) the hypothesis(es)?
What techniques/analyses do the researchers adopt to test their hypothesis(es)?
Write here any general comments you might have about the research approach.
Write here any specific comment you might have about experimental approaches and methods used in the study.
Write here any specific comment/note about figures in the paper (this could be related to the way data are displayed and your ability to understand the results just by looking at the figures).
Write here any additional comment you might have (this includes minor concerns such as typos and structure of the manuscript)