Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) H A FERRARI and C R STEPHEN,Neuroleptanalgesia: Pharmacology and Clinical Experiences with Droperidol and Fentanyl,Southern Medical Journal,0038-4348,Southern Medical Association,1966-07,59,7,815-820,https://cir.nii.ac.jp/crid/1363670319351851264,https://doi.org/10.1097/00007611-196607000-00015