About Yang Jianxin
About 天津市薊州区人民医院産三科 天津 301900
About Zhongguo Yiliao Qixie Xinxi
About safety
About musical instrument
About opioid peptide
About parturition
About pain
About analgesic action
About natural childbirth
About 産婦
About 非侵襲
About 疼痛緩和
About Clinical gynecology and obstetrics in general
About 鎮痛
About 誘導
About 楽器
About 非侵襲的
About 分娩
About 応用
About 研究
About 進展