I am trying to screen my NGS variants against known variations. The dbSNP132 VCF files seem like a great resource, but I'm not certain if I understand what is in them.
Specifically, what is the significance of the population specific files? Are these referring to HapMap populations? For example, does this file (ftp://ftp.ncbi.nlm.nih.gov/snp/organisms/human_9606/VCF/v4.0/ByChromosomeNoGeno/01-1409-CEU-nogeno.vcf.gz) contain all the chromosome 1 SNPS from the CEU HapMap population in addition to any 1000Genomes and dbSNP132 SNPS that were also found in this population?