September 16 - 18, 2011    芝加哥 IL , 美国
OAS is an organization of ophthalmic surgeons, anesthesiologists and nurse anesthetists. We recently surveyed OAS Members and this is what we learned:

28% have been members for more than ten years
21% more than five years
38% from three to five years
25% have joined since 2007

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Location: Hotel Inter Continental Chicago
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