What is scientific evidence?
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D018865:Dental Research / Q000592:standards; D019317:Evidence-Based Medicine; D005260:Female; D005792:General Practice, Dental / Q000592:standards; D006801:Humans; D017712:Peer Review, Research; D010518:Periodontitis / Q000150:complications; D019239:Practice Patterns, Dentists' / Q000592:standards*; D011247:Pregnancy; D047928:Premature Birth / Q000209:etiology