Dear list, In terms of dbSNP database in NCBI, I can get the chr_rpts files for the most recent 37.3 assembly from the following FTP site, ftp://ftp.ncbi.nih.gov/snp/organisms/human_9606/chr_rpts/ My question is how/where I can get these chr_rpts files based on the 36.3 assembly Thanks, Shirley