Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

165,940 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
Effectiveness of Xin Jia Xuan Bai Cheng Qi Decoction in treating acute exacerbation of chronic obstructive pulmonary disease: study protocol for a multicentre, randomised, controlled trial.
Jin J, Zhang H, Li D, Jing Y, Sun Z, Feng J, Zhang H, Zhang Y, Cui T, Lei X, Zhang J, Cheng Q, Li E. Jin J, et al. Among authors: zhang j, zhang h, zhang y. BMJ Open. 2019 Nov 28;9(11):e030249. doi: 10.1136/bmjopen-2019-030249. BMJ Open. 2019. PMID: 31784433 Free PMC article. Clinical Trial.
Effect of PIFR-based optimised inhalation therapy in patients recovering from acute exacerbation of chronic obstructive pulmonary disease: protocol of a prospective, multicentre, superiority, randomised controlled trial.
Hua J, Zhang W, Cao HF, Du CL, Ma JY, Zuo YH, Zhang J. Hua J, et al. Among authors: zhang w, zhang j. BMJ Open. 2020 May 7;10(5):e034804. doi: 10.1136/bmjopen-2019-034804. BMJ Open. 2020. PMID: 32385061 Free PMC article. Clinical Trial.
165,940 results
You have reached the last available page of results. Please see the User Guide for more information.