External validity: A forgotten issue?

Journal of Oral and Facial Pain and Headache

Volumn 23, Issue 4, 2009, Pages 297-298

  Palla, Sandro ^a   Farella, Mauro ^a  

^a UNIVERSITY OF NAPLES FEDERICO II   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

CLASSIFICATION; CONTROL GROUP; EDITORIAL; EPIDEMIOLOGY; HUMAN; MALOCCLUSION; METHODOLOGY; PATIENT SELECTION; REPRODUCIBILITY; RISK FACTOR; SOMATOFORM DISORDER; TEMPOROMANDIBULAR JOINT DISORDER;

BIAS (EPIDEMIOLOGY); CONTROL GROUPS; HUMANS; MALOCCLUSION; PATIENT SELECTION; REPRODUCIBILITY OF RESULTS; RESEARCH DESIGN; RISK FACTORS; SOMATOFORM DISORDERS; TEMPOROMANDIBULAR JOINT DISORDERS;

EID: 75349086174     PISSN: 23330384     EISSN: 23330376     Source Type: Journal    
DOI: None     Document Type: Editorial

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