GVS                     Check the validity of coordinates
GVS_citations           Get citation information
GVS_collaborators       Get collaborator information
GVS_data_dictionary     Get data dictionary
GVS_metadata            Get GVS metadata
GVS_sources             Get information on sources used by the GVS
GVS_version             Get metadata on current GVS version
gvs_testfile            Example GVS data
