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
缺血性坏死股骨（结）似乎是
环，阻
环的股骨。
栓子The primary etiology of avascular necrosis of the femoral head (AVN) appears to be circulating microemboli that block the microcirculation of the femoral head.
主要病因股骨缺血性坏死股骨（结）似乎是环，阻环的股骨。
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