Daniel L. Cook Jesse C. Wiley John H. Gennari Chalkboard: Ontology-Based Pathway Modeling And Qualitative Inference Of Disease Mechanisms. 16-27 2007 conf/psb/2007 Pacific Symposium on Biocomputing http://psb.stanford.edu/psb-online/proceedings/psb07/cook.pdf db/conf/psb/psb2007.html#CookWG07