Ren, Q., H. Yang, and Z. Du. “Effect of Baduanjin Qigong Exercise on Sleep Quality of Patients With Chronic Insomnia: Baduanjin Qigong Exercise on Sleep Quality of Patients With Chronic Insomnia”. The Ethiopian Journal of Health Development, vol. 36, no. 4, Oct. 2022, doi:10.20372/ejhd.v36i4.5049.