The primary etiology of avascular necrosis of the femoral head (AVN) appears to be circulating microemboli that block the microcirculation of the femoral head.
主要病因
缺血性坏死（结）似乎是微循环，阻止微循环
。
The primary etiology of avascular necrosis of the femoral head (AVN) appears to be circulating microemboli that block the microcirculation of the femoral head.
主要病因缺血性坏死（结）似乎是微循环，阻止微循环。
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