Efficacy of abdomen-rubbing qigong exercise for chronic insomnia: study protocol for a randomized controlled trial.
Chong GuanZiji ChengFangfang XieRuiping WangJing ZhangFei YaoMin FangPublished in: Trials (2021)
China Clinical Registration Agency ChiCTR1900028009 . Registered on 19 December 2019.