%0 Journal Article %T Long acting local anesthesia and preventive analgesia—difficulty of prove on clinical trial %A Sunada, Katsuhisa %J Journal of Oral and Maxillofacial Anesthesia %D 2021 %B 2021 %9 %! Long acting local anesthesia and preventive analgesia—difficulty of prove on clinical trial %K %X %U https://joma.amegroups.org/article/view/5511 %V 1 %P %@ 2790-8852