title: Limitations of retrospective research.
authors.forename: Paulo R
authors.initials: PR
authors.lastname: Correa
mesh_terms: D000928:Antidepressive Agents / Q000627:therapeutic use*; D003627:Data Interpretation, Statistical; D006801:Humans; D015203:Reproducibility of Results; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D000928:Antidepressive Agents