HmtDB, a genomic resource for mitochondrion-based human variability studies. - Francesco Rubino; Roberta Piredda; Francesco Maria Calabrese; Domenico Simone; Martin Lang 002; Claudia Calabrese; Vittoria Petruzzella; Mila Tommaseo Ponzetta; Giuseppe Gasparre; Marcella Attimonelli (Nucleic Acids Res., 2012)