The FNIC staff, including an IT programmer, developed the Interactive DRI for Healthcare Professionals, and secured permission to use the data from the IOM (Institue of Medicine) before starting work on this project. FNIC’s credit statement to the IOM is given on the results page. The IOM became the Health and Medicine Division of the National Academies of Sciences, Engineering and Medicine in 2016.
Because the data is from the IOM and is copyrighted, you will need their permission if you want to use the database for any reason other than personal use. See their Legal Information for more details. You can also contact the IOM or visit their website's Request Rights and Permissions page.