2.6. Randomization, concealment, and blinding
A random sequence will be generated by SPSS 22.0, and patients will be randomly assigned to experimental and control groups based on a 1:1 ratio. The randomization grouping results will be stored in opaque, sealed envelopes with serial numbers marked on the cover. These envelopes were opened only before the official start of the intervention.Blinding of therapists and patients is not possible due to the limitations of the intervention method. Data collection was performed and recorded by specialized personnel, and data analysis was performed by an independent statistician. The grouping of patients was not known for the above population.