PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34150240-7 2021 The mean blood levels of lead, antimony, and nickel were higher in SA than ongoing pregnancy; however, this difference was not statistically significant. Nickel 45-51 acyl-CoA synthetase medium chain family member 3 Homo sapiens 67-69