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Glass ionomer was mixed with water alone and with water containing two levels of potassium ion, added as potassium chloride. The dimensions of the specimens varied; discs, cylinders and a rectangular bar were used. Release of potassium was measured until it ceased. A little potassium was released from cement mixed with water but could be accounted for by(More)
Neuroimaging technologies have improved neurology and neurosurgery by providing tools to look inside the brain and investigate its functions and diseases. As for any tool, the users should know the basics of each technique and be aware about their uses and limitations. Here we review these new techniques and illustrate their use with examples from studies(More)
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