Your paper has been reviewed and was found to require modifications prior to its being acceptable for publication. The reviewers' comments are below for you to use as a guide to preparing your revisions. I do reserve the right to have your modified manuscript re-reviewed if I deem it to be necessary.
Even though figure 1 is very clear, it is not always applied for all the different subsets of samples. Please make clear, particulalry in the figures, which reference test you use.