elink

Look up precomputed neighbors within a database, or find associated records in other databases. It is part of the edirect package. More information: https://www.ncbi.nlm.nih.gov/books/NBK179288/.

• Search pubmed then find related sequences:

esearch -db pubmed -query "selective serotonin reuptake inhibitor" | elink -target nuccore

• Search nucleotide then find related biosamples:

esearch -db nuccore -query "insulin [PROT] AND rodents [ORGN]" | elink -target biosample