NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Subjects United States Remove constraint Subjects: United States Languages English Remove constraint Languages: English Genre Pragmatic Clinical Trial Remove constraint Genre: Pragmatic Clinical Trial Copyright Copyright may apply Remove constraint Copyright: Copyright may apply Dates by Range 2000 and later Remove constraint Dates by Range: 2000 and later

Search Results

1. Association of rideshare-based transportation services and missed primary care appointments: a clinical trial

2. A pragmatic trial of e-cigarettes, incentives, and drugs for smoking cessation