Response to letter "Clinical characteristics and survival of pulmonary arterial hypertension associated with three major connective tissue diseases: Methodological issues"

Affiliations

¹ Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Beijing 100730, China.
² Department of Epidemiology and Bio-statistics, Institute of Basic Medical Sciences, Peking Union Medical College/China Academy of Medical Sciences, Beijing, China. Electronic address: wyhong826@pumc.edu.cn.

Comment

Jiuliang Zhao et al. Int J Cardiol. 2017.

. 2017 Dec 15:249:418.

doi: 10.1016/j.ijcard.2017.06.126.

¹ Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Beijing 100730, China.
² Department of Epidemiology and Bio-statistics, Institute of Basic Medical Sciences, Peking Union Medical College/China Academy of Medical Sciences, Beijing, China. Electronic address: wyhong826@pumc.edu.cn.

No abstract available

Keywords: COX regression; Prognosis; Pulmonary arterial hypertension.

Comment on

Clinical characteristics and survival of pulmonary arterial hypertension associated with three major connective tissue diseases: A cohort study in China.
Zhao J, Wang Q, Liu Y, Tian Z, Guo X, Wang H, Lai J, Huang C, Yang X, Li M, Zeng X. Zhao J, et al. Int J Cardiol. 2017 Jun 1;236:432-437. doi: 10.1016/j.ijcard.2017.01.097. Epub 2017 Jan 18. Int J Cardiol. 2017. PMID: 28159359
Clinical characteristics and survival of pulmonary arterial hypertension associated with three major connective tissue diseases: Methodological issues.
Ayubi E, Safiri S. Ayubi E, et al. Int J Cardiol. 2017 Dec 15;249:417. doi: 10.1016/j.ijcard.2017.06.063. Int J Cardiol. 2017. PMID: 29121746 No abstract available.