First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300381 China;
First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300381 China;
First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300381 China;
Tianjin University of Traditional Chinese Medicine Tianjin 301617 China;
Australian National University Canberra 2601 Australia;
First Teaching Hospital of Tianjin University of Traditional Chinese Medicine Tianjin 300381 China;
Chronic obstructive pulmonary disease; Anxiety; Self-rating anxiety scale scores; Liuzijue Qigong; Pulmonary rehabilitation; Coronavirus disease 2019;