Fig. 1From: Comparison of the efficacy between conventional moxibustion and smoke-free moxibustion on knee osteoarthritis: study protocol of a randomized controlled trialFlowchart of the study process. Participants with a diagnosis of KOA will be recruited from seven centers. All project general practitioners (GPs) were trained for 1 day. The trial period will consist of 12 sessions of moxibustion treatment over a period of 4 weeks. The treatment frequency will be three sessions per week, and there will be a 2-month follow-up period. The outcomes will be measured at every visitBack to article page