22 October 2020>: Clinical Research
Serum Levels of Gamma-Glutamyltransferase During Stable and Acute Exacerbations of Chronic Obstructive Pulmonary Disease
Desheng Sun 12ABCEG* , Hongyan Liu 3DF , Yao Ouyang 1B , Xiansheng Liu 2G , Yongjian Xu 2CDOI: 10.12659/MSM.927771
Med Sci Monit 2020; 26:e927771
Figure 1 Participant recruitment and follow-up flow chart.