Research and educational use of OMIM is encouraged. A table linking OMIM genes to NCBI and Ensembl IDs (mim2gene.txt) is available without registration from the Downloads link on every OMIM.org web page. The gene map file containing gene–phenotype relationships including inheritance of the phenotype and a file of MIM entry titles and numbers are available from a secure HTTPS server after registration. Single-user academic, non-profit, and governmental agencies can obtain access after registering with an institutional email address. For-profit companies or anyone planning to redisplay or incorporate OMIM data into software must secure a license to ensure attribution and integrity of data use.
