25.4% NxStage Medical, Inc. Healthcare Devices 2003 B8 18.9 - 18.9 5.80 5.80 20.9% Orquest, Inc. Healthcare Devices 1995 5.5 78 - 7.8 1.42 1.42 6.1% Pathology Partners Diagnostics & Infrastructure 1997 3.3 22.4 - 22.4 6.82 6.82 38.2% Pharsight Corporation Convergence 1997 4.9 7.3 - 7.3 148 148 6.0% Point Biomedical Diagnostics & Infrastructure