Vitamin D levels are prognostic factors for connective tissue disease associated interstitial lung disease (CTD-ILD)

Gao, YJ; Zhao, Q; Qiu, XH; Zhuang, Y; Yu, M; Dai, JH; Cai, HR; Yan, X

Cai, HR; Yan, X (corresponding author), Nanjing Univ, Dept Resp & Crit Care Med, Nanjing Drum Tower Hosp, Affiliated Hosp,Med Sch, Nanjing 210008, Jiangsu, Peoples R China.

AGING-US, 2020; 12 (5): 4371