Analysis of information sources in references of the Wikipedia article "芬太尼" in Chinese language version.
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缺少标题 (帮助). 2020-12-07, 13: 3281–3294. PMC 7732170 . PMID 33324089. doi:10.2147/JPR.S280462 .|PMC=
缺少标题 (帮助). 2020-12-07, 13: 3281–3294. PMC 7732170 . PMID 33324089. doi:10.2147/JPR.S280462 .Onset of action after IV administration of Fentanyl is 3–5 minutes; duration of action is 30–60 minutes.
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(帮助)Onset of action after IV administration of Fentanyl is 3–5 minutes; duration of action is 30–60 minutes.
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