We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. A test-negative observational study design may be best ...

Developing treatments for rare diseases poses many unique challenges that cannot be addressed by traditional study designs. Small populations will result in prolonged enrolment periods and/or ...

Studies may be either observational or experimental. An experimental study is one in which the investigator deliberately intervenes so that it is possible to observe the effect of the intervention on ...

Understanding various research study designs and methods is crucial for postgraduate students aiming to produce high-quality, impactful research. This resource delves into the fundamentals of research ...

Noninferiority clinical trials have become a major tool for the evaluation of drugs, devices, biologics, and other medical treatments. Treatment with placebo or with a no-treatment control in a study ...