PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9931224-6 1999 Free erythrocyte protoporphyrins in blood were associated with Pb-P (r=0.75; P=0.0001) and Pb-B (r=0.90; P=0.0001). Protoporphyrins 17-32 mediator complex subunit 1 Homo sapiens 63-67