PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10679930-1 2000 We have previously described a 5; cis-acting retinoic acid response element that is required for a subset of Hoxa4 expression, including the midgestation mouse lung. retinoic 45-53 homeobox A4 Mus musculus 109-114