How to get the data to reproduce a published result?
Email the author nominated for communications, and ask them for a copy of their dataset and enough specifications to reproduce their numeric results. As a backstop, ask for the specific criteria they used to exclude cases. Consider offering co-authorship on any papers that will result from your analysis, as incentive. Give them enough context about you &amp; your own work, so that they know your enquiry is serious, and that you're looking to constructively build on their work, (and not to stitch them up!)