PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8466018-5 1993 The pharmacokinetics of alfentanil from the cerebrospinal fluid to the systemic circulation were linear, i.e., dose-independent with maximal serum concentrations of 0.6, 1.4, and 3.5 ng/mL 10 min after the three respective IT doses. Alfentanil 24-34 skull morphology 14 Mus musculus 186-191