Markdum, J., S. Thanasilp, and N. Pudtong. “The effects of a shoulder exercise program combined with qigong on ability to shoulder function of breast cancer patients after mastectomy”. Journal of Research in Nursing-Midwifery and Health Sciences, vol. 37, no. 1, Mar. 2017, pp. 38-52, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/81287.