dbSNP: a database of single nucleotide polymorphisms. - Elizabeth M. Smigielski; Karl Sirotkin; Minghong Ward; Stephen T. Sherry (Nucleic Acids Res., 2000)

dbSNP: the NCBI database of genetic variation. - Stephen T. Sherry; Minghong Ward; M. Kholodov; J. Baker; Lon Phan; Elizabeth M. Smigielski; Karl Sirotkin (Nucleic Acids Res., 2001)