Effect of laughter exercise versus 0.1% sodium hyaluronic acid on ocular surface discomfort in dry eye disease: non-inferiority randomised controlled trial.
Jing LiYinglin LiaoShi-Yao ZhangLing JinNathan CongdonZixin FanYangfa ZengYingfeng ZhengZuguo LiuYizhi LiuLingyi LiangPublished in: BMJ (Clinical research ed.) (2024)
ClinicalTrials.gov NCT04421300.