PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23015148-7 2013 Serum metabolomics revealed higher glycerol and citrate levels in the VHL ( R200W ) homozygotes. Citric Acid 48-55 von Hippel-Lindau tumor suppressor Homo sapiens 70-73