Controversy over "Contradiction": Should Randomized Trials Always Trump Observational Studies?

American Journal of Ophthalmology

Volumn 147, Issue 3, 2009, Pages 384-386

  Fletcher, Astrid E ^a  

^a LONDON SCHOOL OF HYGIENE AND TROPICAL MEDICINE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ANTIOXIDANT; DOCOSAHEXAENOIC ACID; FISH OIL; RETINOL;

ANTIOXIDANT ACTIVITY; BREAST CANCER; CATARACT; CLINICAL RESEARCH; CORONARY RISK; DIET SUPPLEMENTATION; DIETARY INTAKE; EDITORIAL; HORMONE SUBSTITUTION; HUMAN; ISCHEMIC HEART DISEASE; OBSERVATIONAL STUDY; PRIORITY JOURNAL; RANDOMIZED CONTROLLED TRIAL; RETINA MACULA DEGENERATION; RISK REDUCTION; TREATMENT OUTCOME; VITAMIN INTAKE; XEROPHTHALMIA;

BIAS (EPIDEMIOLOGY); EPIDEMIOLOGIC STUDIES; EVIDENCE-BASED MEDICINE; HUMANS; OBSERVATION; RANDOMIZED CONTROLLED TRIALS AS TOPIC; RESEARCH DESIGN;

EID: 59749086379     PISSN: 00029394     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ajo.2008.04.024     Document Type: Editorial

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