The Online Mendelian Inheritance in Man (OMIM) database "is a catalog of human genes and genetic disorders authored and edited by Dr. Victor A. McKusick and his colleagues at Johns Hopkins University and elsewhere, and developed for the World Wide Web by NCBI, the National Center for Biotechnology Information." OMIM was designed primarily for health professionals working with genetic disorders, genetic researchers, and advanced medical and science students. OMIM contains textual information, references, and many "links to MEDLINE and sequence records in the Entrez system," as well as links to other relevant resources. The site offers a search engine with a text box along with advanced search options like History, Preview/Index, and more. This website also provides links to Human Genome Resources, Allied Resources, and to more general and technical information about OMIM.