PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3196117-2 1988 Three cephalosporins of the 3rd generation were characterized by the highest activity against such bacteria, including Enterobacter spp. Cephalosporins 6-20 histocompatibility minor 13 Homo sapiens 132-135