Larkshmi Krishnamurthy Joseph H. Nadeau Gultekin Özsoyoglu Z. Meral Özsoyoglu Greg Schaeffer Murat Tasan Wanhong Xu Pathways Database System: An Integrated System for Biological Pathways. 930-937 2003 19 Bioinformatics 8 db/journals/bioinformatics/bioinformatics19.html#KrishnamurthyNOOSTX03