自体骨粉加PALVA瓣填塞开放式乳突根治术21例近期疗效观察
자체골분가PALVA판전새개방식유돌근치술21례근기료효관찰
The short-term efficacy of autogenous bone pate and palva graft for obliterating huge mastoid cavity in canal wall-down approach
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