PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18022416-9 2007 Application of the developed method to the quantitation of total RET esters-type PAs in Senecio scandens from different regions of China is also reported. Pyrrolizidine Alkaloids 81-84 ret proto-oncogene Homo sapiens 65-68