这纯粹是自发性的事件，更象受到遗传因素调控。

It is just a spontaneous event that is most likely controlled by genetic factors.

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自发性，不落俗套就是创造性中最关键的因素。

Spontaneity is one of the key elements of creativity.

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目的探讨影响原发性自发性气胸(PSP)复发的因素。

Objective to study the influential factors of recurrence of primary spontaneous pneumothorax (PSP).

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