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116 patients aged 70 or over who were judged to have surgically resectable cancer of the breast were prospectively randomised to tamoxifen 20 mg daily or surgical resection. At a median follow-up of three years, local relapse or progression was seen in 15 (25%) of 60 patients in the tamoxifen group and 21 (37.5%) of 56 in the surgical arm. Distant(More)
Token-ring LANs defined by the IEEE 802.5 and American National Standards Institute X3T9.5 Committees are considered. The author addresses several myths surrounding token-ring networks and offers supporting technical evidence to the contrary. He discusses token-ring protocols, the star-wired configuration, ring access via tokens, multiplexing of ring(More)
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