Corrigendum: DNA sequence and analysis of human chromosome 18. - Nusbaum, Chad; Zody, Michael C.; Borowsky, Mark L.; Kamal, Michael; Kodira, Chinnappa D.; Taylor, Todd D.; Whittaker, Charles A.; Chang, Jean L.; Cuomo, Christina A.; Dewar, Ken; FitzGerald, Michael G.; Yang, Xiaoping; et al. (Nature, 2005)