The primary etiology of avascular necrosis of the femoral head (AVN) appears to be circulating microemboli that block the microcirculation of the femoral head.
主要病因股骨
缺血
坏死股骨（结）似乎是微
，
止微的股骨。
The primary etiology of avascular necrosis of the femoral head (AVN) appears to be circulating microemboli that block the microcirculation of the femoral head.
主要病因股骨缺血坏死股骨（结）似乎是微，止微的股骨。
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