Introduction In cluster randomised trials (CRT), groups (rather than individuals) are randomised to intervention and control conditions. Since the publication of the Ottawa Statement on the Ethical ...

Recruitment is generally the first contact between researchers and prospective participants (whether through paper-based or online announcements, media communications, or face-to-face interactions) ...

Federal regulations at 45 CFR 46.102 item (j), define minimal risk as "... the probability and magnitude of harm or discomfort anticipated in the research are not greater in and of themselves than ...

More pediatric drug trials are needed, but although specific pediatric regulations warrant safety, recruitment of children for these trials remains one of the main difficulties. Therefore, we ...