What proportion of ethically approved randomised clinical trials can be found in a trial registry?

Παρόμοια τεκμήρια

• Reporting quality of journal abstracts for surgical randomized controlled trials before and after the implementation of the CONSORT extension for abstracts
  ανά: Speich, B, κ.ά.
  Έκδοση: (2019)
• Comparison of randomized controlled trials discontinued or revised for poor recruitment and completed trials with the same research question: a matched qualitative study
  ανά: Briel, M, κ.ά.
  Έκδοση: (2019)
• A longitudinal assessment of trial protocols approved by research ethics committees: the Adherance to SPIrit REcommendations in the UK (ASPIRE-UK) study
  ανά: Speich, B, κ.ά.
  Έκδοση: (2022)
• Reliability of trial information across registries for trials with multiple registrations: a systematic review
  ανά: Speich, B, κ.ά.
  Έκδοση: (2021)
• Comparison of randomized controlled trials discontinued or revised for poor recruitment and completed trials with the same research question: a matched qualitative study
  ανά: Matthias Briel, κ.ά.
  Έκδοση: (2019-12-01)