PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20067883-15 2009 beta-carotene, lycopene and all-trans retinoic acid alone and in combination with docetaxel were found to influence the expression of bcl-2 and p53 antigen in the cells examined. Tretinoin 38-51 tumor protein p53 Homo sapiens 144-147