PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26157551-3 2015 Betulinic acid showed the anti-influenza viral activity at a concentration of 50 muM without a significant cytotoxicity in influenza A/PR/8 virus infected A549 cells. betulinic acid 0-14 bicoid Drosophila melanogaster 81-84