Objectives: To explore rheumatoid arthritis (RA) patient treatment preferences, their decision-making and the treatment choices they would make when faced with three antitumour necrosis factor-a (TNF-

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Acid and alkaline phosphatase activities of microbial films colonizing glass surfaces were studied. Films developed in water with a high organic content were characterized by a high ratio of alkaline to acid phosphatase activity. Alkaline phosphatase activity of these films was enhanced by a period of prior heating at 60°C for 10 min. Microbial films developed in poorer water exhibited higher proportions of acid phosphatases and heat treatment had a less favourable effect on the alkaline phosphatase activity.

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