Department of Genetics, Stanford Medical Informatics, MSOB X-215, Stanford, CA 94305-5479, USA. rubin@smi.stanford.edu|Department of Genetics, Stanford Medical Informatics, MSOB X-215, Stanford, CA 94305-5479, USA. rubin@smi.stanford.edu|Department of Genetics, Stanford Medical Informatics, MSOB X-215, Stanford, CA 94305-5479, USA. rubin@smi.stanford.edu|Department of Genetics, Stanford Medical Informatics, MSOB X-215, Stanford, CA 94305-5479, USA. rubin@smi.stanford.edu|Department of Genetics, Stanford Medical Informatics, MSOB X-215, Stanford, CA 94305-5479, USA. rubin@smi.stanford.edu