回复：important question to butterfllyfish

I am doing research, biomedical, on Parkinson.

First, I got RFE(request for evidence),so I tried to get some strong recommendation letters(one is from Harvard!), so, submitted again, in two weeks,done.

Another, petiton letter and recommendation letters are made by lawyer, based on my research proposal and previous papers abstract...

It seems not too hard, good Luck!