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pro vyhledávání: '"Gregory Payonk"'
Autor:
Gregory Payonk, Dick Jackson
Publikováno v:
Biomedical Optical Spectroscopy and Diagnostics.
Digital photography in human clinical trials is rapidly replacing conventional film techniques. However, raw digital images generally have a color cast and lack optimum contrast. New methods have been developed for calibration of acquisition conditio
Autor:
Lorne M. Golub, Mark S. Wolff, Michael K. Leung, Steven Roberts, Gregory Payonk, Hsi-Ming Lee
Publikováno v:
Journal of the American Dental Association (1939). 125(2)
A new therapeutic approach involves the discovery by the "Stony Brook group," that tetracyclines, but not other antibiotics, can inhibit host-derived collagen-destructive enzymes. This newly discovered property of tetracyclines is unrelated to the an
Publikováno v:
Journal of Clinical Periodontology; Sep1989, Vol. 16 Issue 8, p525-528, 4p
Publikováno v:
Journal of Clinical Periodontology. 16:525-528
A 4 week, double blind clinical trial was conducted to assess the antiplaque/anticalculus activity of test dentifrices containing varying levels of zinc citrate. Subjects were divided into 6 groups, 4 experimental, 1 positive control and a placebo gr