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Rough set theory is a useful tool for data mining. It is based on equivalence relations of a universe. The covering rough sets is an improvement of Pawlak rough set to deal with complex practical problems which the latter one can not handle. However, many basic notions in this theory are not as widely agreeable as in the Pawlak rough set theory. This paper(More)
The objective is to determine the relation between severity of knee osteoarthritis (KOA) and levels of Collagen type II metabolite (C2C) and trace elements in the urine. The urine sample and knee joint films (anteroposterior and lateral) from the KOA patients and control subjects were collected. The KOA patients were divided into five groups (controls and(More)
OBJECTIVE Medical reviews and research comprise a key information source for news media stories on medical therapies and innovations as well as for physicians in updating their practice. The present study examined medical review journal articles, physician surveys and news media coverage of hormone replacement therapy (HT) to assess the relationship between(More)