Serum Creaction protein， endothelin1 and brain natriuretic peptide  in patients with  chronic obstructive pulmonary disease in plateau region and pulmonary hypertension
Wang Qianga， Bai Qianb， Chen Qiuhongc
Clinical Focus . 2017, (7): 583 -586 .  DOI: 10.3969/j.issn.1004-583X.2017.07.008