PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28590363-10 2017 The carboxylesterase 1-mediated transesterification metabolite ethylphenidate served as a biomarker for coexposure. ethylphenidate 63-77 carboxylesterase 1 Homo sapiens 4-22