title: Interpretation of observational studies.
authors.affiliation: Professor, Department of Preventive & Community Dentistry, School of Dentistry, University of Athens, Athens, Greece.
authors.forename: Argy
authors.initials: A
authors.lastname: Polychronopoulou
authors.affiliation: Private practice, Corfu, Greece; visiting assistant professor, Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine/Medical Faculty, University of Bern, Bern, Switzerland.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Pandis
mesh_terms: D015982:Bias; D015984:Causality; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D064887:Observational Studies as Topic / Q000706:statistics & numerical data*; D015588:Observer Variation; D012107:Research Design / Q000706:statistics & numerical data; D015983:Selection Bias