The most frequent sites involved were rib(19.2%) and lumbar and sacral vertebrae(17.5%).

累及肋骨的转移瘤最多见（19．2％），其次为腰骶椎（17．5％）；

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The most frequent sites involved were rib(19.2%) and lumbar and sacral vertebrae(17.5%).

累及肋骨的转移瘤最多见（19．2％），其次为腰骶椎（17．5％）；

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