๐”– Bobbio Scriptorium
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Protection of participants and experimental design in clinical abuse liability testing

โœ Scribed by JACK H. MENDELSON


Book ID
108593832
Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
476 KB
Volume
86
Category
Article
ISSN
0965-2140

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## Abstract In a clinical evaluation of marginal deterioration, 475 amalgram restorations were equally distributed in a 6 ร— 4 ร— 2 ร— 3 factorial design, based on alloy, operator, tooth, and number of restored surfaces. All factors except the last had a statistically significant effect after 6, 12 an