title: SNP ID conversion
body: <p>Does anyone know of a way to convert single nucleotide polymorphism (SNP) IDs from rs# to SNP_A-#? I have two SNPs, rs429358 and rs4420638, and need to determine whether these SNPs are included in a different dataset.  The dataset uses SNP_A-xxxxx symbols for SNP IDs.  Any help would be greatly appreciated!</p>