[Meeting a quantitative measure necessary for a requirement; enough to meet the needs of a situation. ( NCI )] (UMLS (NCI) C0205410) =Qualitative Concept
[An opioid analgesic that is used as an adjunct in anesthesia, in balanced anesthesia, and as a primary anesthetic agent. ( MSH )] (UMLS (NCI) C0143993) =Organic Chemical; Pharmacologic Substance ; =[CN101] OPIOID ANALGESICS; FENTANYL =Fentatienil