for general design, methodology, economics, etc. of observational studies; a different heading OBSERVATIONAL STUDY is used for reports of a specific observational study
Scope Note
Works about clinical studies in which participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to specific interventions (as in an interventional study).
Works about clinical studies in which participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to specific interventions (as in an interventional study).
