The result showed that the annual risk of re-bleeding was 2.7% in surgical group, and was significantly lower than that in non-surgical group (7.6%/year, p =0.042), although the result represented marginal significance [ 28 ].
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The result showed that the annual risk of re-bleeding was 2.7% in surgical group, and was significantly lower than that in non-surgical group (7.6%/year, p =0.042), although the result represented marginal significance [ 28 ].