PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2787029-4 1989 However, the viable bacteria required about 1 log lower concentrations than the formalin-killed bacteria to induce the same level of IL-1 activity measured in the thymocyte proliferation assay. Formaldehyde 80-88 interleukin 1 complex Mus musculus 133-137