PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31744669-0 2020 Validation of a sensitive UHPLC-MS/MS method for cytochrome P450 probe substrates caffeine, tolbutamide, dextromethorphan, and alprazolam in human serum reveals drug contamination of serum used for research. Alprazolam 127-137 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 49-64