Conserved Core Substructures in the Overlay of Protein-Ligand Complexes. - Barry C. Finzel; Ramprasad Akavaram; Aravind Ragipindi; Jeffrey R. Van Voorst; Matthew H. Cahn; Malcolm E. Davis; Matt E. Pokross; Steven Sheriff; Eric T. Baldwin (J. Chem. Inf. Model., 2011)