Access to raw data
This is an update request for the document Early intervention with tiotropium in Chinese patients with GOLD stages I–II chronic obstructive pulmonary disease (Tie-COPD): study protocol for a multicentre, double-blinded, randomised, controlled trial
by Xiaochen Li, Yumin Zhou, Shuyun Chen, Jinping Zheng, Nanshan Zhong and Pixin Ran
Your paper was deposited in MUCC (Crossref)
and appears online at http://bmjopen.bmj.com/content/bmjopen/4/2/e003991.full.pdf
Before we are able to make any updates or deletions, you must
ensure that the original record at this location is updated/removed.