Effect of aerobic exercise on immunity and circulation of patients with chronic obstructive pulmonary disease at stable stage
ZHANG Zi-nan, LI Kun-peng, CHEN Hao, XIAO Lin, FENG Ying
Journal of Hebei Medical University . 2021, (6): 661 -664 .  DOI: 10.3969/j.issn.1007-3205.2021.06.009