%0 Journal Article %T Gender differences in the effective dose of alfentanil in painless bronchoscopy %A Wang, Longfei %A Wu, Qiuyue %A Wang, Ming %A Ding, Miao %A Cao, Yunfei %J Journal of Thoracic Disease %D 2022 %B 2022 %9 %! Gender differences in the effective dose of alfentanil in painless bronchoscopy %K %X %U https://jtd.amegroups.org/article/view/70674 %V 15 %N 1 %P 216-218 %@ 2077-6624