Erratum to: Status and access to the Collaborative Cross population (Mammalian Genome (2012) 23, (706-712) DOI: 10.1007/s00335-012-9410-6) - Welsh, C; Miller, DR; Manly, K; Wang, J; McMillan, L; Morahan, G; Mott, R; Iraqi, F; Threadgill, D; De Villena, F (Springer New York LLC, 2014)