The project began as a study guide I created for myself from an older document that I updated and modified. The more I expanded the guide, the more I realized it was complete enough for public use, and decided to share it online on an excel file via Dropbox in 2017. Eventually I transitioned to Google Sheets to allow for live updates and viewing. In 2020, the application was created for iOS and Android through the efforts of Matthew Culbert.
Thanks is also extended to many other commentators, Twitter users, QuadShotNews, ACR Journal Club, and users of the sheets who are kind enough to comment and contribute to help keep the sheets accurate. Many of these are acknowledged through citations and others in the Acknowledgement section.