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OBJECTIVES To evaluate the normal distribution of serum prostate-specific antigen (PSA) levels in healthy Chinese men, because, until recently, studies conducted to establish normal serum PSA values have not involved a Chinese population. METHODS Between September 1999 and December 2001, 1096 healthy Chinese men aged 23 to 85 years, who had undergone a(More)
This paper presents three experiments to explore the feasibility of location-based voice messaging. We first compared three methods for collecting synthetic speech messages located in a room, namely PIN code entry, barcode scanning and automatic detection with a Bluetooth antenna. In addition to being very reliable, Bluetooth detection was significantly(More)
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