title: Statistical considerations on the parameters in drug evaluation.
abstract: Some fundamental considerations are described on the parameters in clinical drug evaluation, and on the combination of them into a judgement on the usefulness of the drug. Regardless of the types of study, informal exploratory or formal controlled study, we must recognize that we work in the clinical field where many pitfalls of variability and bias are ambushing us.
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D004341:Drug Evaluation; D006801:Humans; D013223:Statistics as Topic