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From CSBLwiki
NCBI E-utilities
- A Short Course
- Retrieving large data set
- Genbank fields - FEATURES qualifier (db_xref=taxon:######)
- Retrieving large data set
http://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=nucleotide&id=GU903491&rettype=gb