请问我在提供了这家医院的邀请书和大学的返校证明外，还需要提交什么相关证明，或者还有什么要注意的呢？
After that I will return to my university to start the new semester. What else do I need to provide except invitation letter from the hospital and certificate from my university?
请问我在提供了这家医院的邀请书和大学的返校证明外，还需要提交什么相关证明，或者还有什么要注意的呢？
After that I will return to my university to start the new semester. What else do I need to provide except invitation letter from the hospital and certificate from my university?
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