长时间

I think the Austrian story is very appealing although ultimately I will argue it isn't quite right.

我认为奥地利学派的说法是非常有吸引力的（虽然，最后我将要说明它并不是完全正确的）。

Methods: 11 cases of large jaw cystic lesions were treated with marsupialization and suction drainage. Clinical symptoms and radiographical findings were evaluated before operation and at 3-month, 6-month after suction drainage.

选择门诊就诊的11例颌骨囊肿患者，采用开窗负压吸引术对其进行治疗，观察术后3、6个月颌骨囊肿的变化情况，对仍存留的囊肿行二期囊肿刮治术结果：术后3个月，其中5例囊肿消失，6例缩小3/4以上。