For Immediate Release
Contact: mktgcomm@tams.com

MCKESSON AND TOSHIBA TARGET SMALL HOSPITALS AND IMAGING CENTERS WITH COMBINED MEDICAL IMAGING SOLUTION

ATLANTA, GA — July 26, 2006 — McKesson announced that it has signed a distribution agreement with Toshiba America Medical Systems, Inc. The agreement calls for Toshiba to offer McKesson's No. 1 ranked Horizon Medical Imaging™ PACS solution with Toshiba's innovative diagnostic imaging devices, including the Aquilion™ line of CT scanners. The agreement is designed to offer imaging centers and hospitals under 200 beds a turnkey solution that's affordable, easy to implement and easy to support.

In a joint statement, McKesson and Toshiba noted that they believe this agreement is the best way to offer the community market affordable, easily installed best-of-breed diagnostic imaging solutions.

"We are delighted to enter this agreement and build a relationship with a global leading provider of diagnostic medical imaging systems," said Sunny Sanyal, group president, Clinical Solutions, McKesson Provider Technologies. "McKesson and Toshiba are both long-time industry leaders with numerous complementary products that play critical roles in most hospital departments today. We are very fortunate to find a business partner with a similar commitment to quality customer service and a vision to provide smaller hospitals and imaging centers with diagnostic technologies that were often out of reach in the past."

"We look forward to a highly productive relationship with McKesson," said Lawrence Dentice, general manager and senior vice president, Toshiba America Medical Systems. "The explosive growth of McKesson's PACS solution across all market segments is testament to its product quality, interoperability and the company's focus on customer service. As our technology becomes more sophisticated, we're seeing increased demand to help customers address large volume data sets. With the name recognition of Toshiba and McKesson, we expect to accelerate the adoption of our leading applications." Customer satisfaction coupled with broad and deep product capabilities have been strong drivers for McKesson's continued PACS growth. Horizon Medical Imaging holds the category leader designation for the community clinical solutions and community PACS category in the Top 20: KLAS 2006 Mid-Year Report Card issued last month. It also is ranked among the top three solutions in the PACS category for general market solutions in the same KLAS report. Horizon Medical Imaging is modality independent, helping hospitals to integrate images from multiple modalities with clinical patient data for more comprehensive electronic health records (EHRs). The system also is designed to streamline radiology department workflow and to promote improved radiologist efficiency.

Toshiba's CT business has installed more than 17,000 CT systems in hospitals, imaging centers and medical group practices worldwide. The company's award-winning Aquilion system offers advanced features and capabilities that provide physicians with a powerful tool that is ideal for applications requiring precise clinical information. At the heart of the system's design is the superior Quantum detector that produces high-speed, high-resolution imaging with the best low contrast solution at the lowest dose. Toshiba's Aquilion has also been widely recognized in industry. For instance, KLAS's 64-slice CT perception report, released in October 2005, ranked Toshiba's Aquilion 64-slice CT system at the top in overall vendor ratings, outpacing leading diagnostic imaging manufacturers.

About Toshiba
With headquarters in Tustin, Calif., Toshiba America Medical Systems, Inc. markets, sells, distributes and services diagnostic imaging systems, and coordinates clinical diagnostic imaging research for all modalities in the United States. Toshiba Medical Systems Corporation, an independent group company of Toshiba Corporation, is a global leading provider of diagnostic medical imaging systems and comprehensive medical solutions, such as CT, X-ray, Ultrasound, Nuclear Medicine, MRI and information systems, as well as cardiac cath and EP labs. Toshiba Corporation is a leader in information and communications systems, electronic components, consumer products, and power systems. Toshiba has approximately 161,000 employees worldwide and annual sales of $53 billion.

About McKesson
McKesson Corporation, currently ranked 16th on the FORTUNE 500, is a healthcare services and information technology company dedicated to helping its customers deliver high-quality healthcare by reducing costs, streamlining processes, and improving the quality and safety of patient care. Over the course of its 173-year history, McKesson has grown by providing pharmaceutical and medical-surgical supply management across the spectrum of care; healthcare information technology for hospitals, physicians, homecare, and payors; hospital and retail pharmacy automation; and services for manufacturers and payors designed to improve outcomes for patients. For more information: www.mckesson.com.

About KLAS Enterprises
KLAS Enterprises, LLC, is a research firm specializing in monitoring and reporting the performance of information technology vendors in the healthcare field. KLAS has created a database of information on the performance of 300 vendors and 500 products, as judged by executives and clinicians from more than 4,500 healthcare facilities. The company gathers data through written evaluations and confidential interviews, and publishes results regularly. For more information on KLAS, visit www.healthcomputing.com.