Changes in version 0.2.0 (2021-03-14) Major changes Added new key: leucht2020 (https://doi.org/10.1176/appi.ajp.2019.19010034) Minor changes Added additional tests to compare results to spreadsheet by Leucht et al. with similar purpose. Changes in version 0.1.3 Major changes Added new vignette with examples from each of the keys (references). Minor changes Added additional tests and code cleanup. Changes in version 0.1.2 (2019-10-11) This is the first CRAN release of the package. The package has just passed peer-review through rOpenSci. It is published in a fully functional state.