Hello all.

I have one questions about database of genomic variants(DGV).

When I enter site of DGV, it seems like all reported variants are focused on copy number variants.

Is it right? DGV is specialized in only CNV ?

and one more question.

While entering sites below,

http://dgv.tcag.ca/dgv/app/downloads?ref=GRCh37/hg19

I found that two categorizes that can be downloaded.

one categorize is DGV variants file and the other is support variants file.

While I already read manual about them but I can't understand what kind of different both of them have.

I very appreciate if you could tell me difference between them.