The Yeast Proteome Database (YPD) and Caenorhabditis elegans Proteome Database (WormPD): comprehensive resources for the organization and comparison of model organism protein information. - Maria C. Costanzo; Jennifer D. Hogan; Michael E. Cusick; Brian P. Davis; Ann M. Fancher; Peter E. Hodges; Pinar Kondu; Carey Lengieza; Jodi E. Lew-Smith; Carol Lingner; Kevin Roberg-Perez; Michael Tillberg; et al. (Nucleic Acids Res., 2000)