GET /elink.fcgi

Web environment string from a previous ESearch, EPost or ELink call

NCBI API key for higher rate limits

ELink command mode

Constraints: {'enum': ['neighbor', 'neighbor_history', 'acheck', 'ncheck', 'lcheck', 'llinks', 'llinkslib', 'prlinks']}

Destination database for links (may be comma-delimited list). If omitted, links to all databases are returned.

Database with input UIDs

Constraints: {'enum': ['pubmed', 'protein', 'nuccore', 'ipg', 'nucleotide', 'structure', 'genome', 'annotinfo', 'assembly', 'bioproject', 'biosample', 'blastdbinfo', 'books', 'cdd', 'clinvar', 'gap', 'gapplus', 'grasp', 'dbvar', 'gene', 'gds', 'geoprofiles', 'medgen', 'mesh', 'nlmcatalog', 'omim', 'orgtrack', 'pmc', 'proteinclusters', 'pcassay', 'protfam', 'pccompound', 'pcsubstance', 'seqannot', 'snp', 'sra', 'taxonomy', 'biocollections', 'gtr']}

UID list (comma-delimited). Either id or query_key/WebEnv must be provided.

Link name to restrict the links retrieved

Query key from a previous ESearch, EPost or ELink call

Return mode. Use 'json' for JSON output, 'xml' for XML output.

Constraints: {'enum': ['xml', 'json']}