Observational studies are critical tools in clinical research and public health response, but challenges arise in ensuring ...

On watching this video, students should be able to: Distinguish between an observational and experimental study. Explain the main reason why a randomised experiment can if done well, be used as a test ...

Risk of long-term mortality is independently associated with eosinophil counts 5 to 7 days after onset in patients with acute myocardial infarction.