This graphic allows an audience with some content expertise to get progressively more detailed information about the selected medical test's usage in a study period. I paid special attention here to relaying the story in a digestible manner, starting from the most general information about the procedure, to violations of billing policy in aggregate, to the specific violators.
This was one of my first d3 projects to be used by a client as a presentation tool.
I was pleased in doing this work to learn about: