FOR IMMEDIATE RELEASE

Diagnosaurus offers updates on more than 1,000 differential diagnoses for the handheld and on McGraw-Hill's AccessMedicine

NEW YORK, December 5, 2006—McGraw-Hill Professional, a leading global provider of information resources for the scientific and medical communities, today announced the release of Diagnosaurus 2.0, a FREE differential diagnosis tool for the web and PDA. The latest version of Diagnosaurus offers updates to symptoms, diseases and disorders as well as platform enhancements for the PDA.

Since Diagnosaurus was first introduced in 2003, tens of thousands of medical students, physicians, and other healthcare professionals have used the tool via PDA and web to aid them in making quick, informed medical decisions. Users can select from more than 500 symptoms and signs to view a prioritized list of potential causes, or they can search Diagnosaurus' database of more than 700 diseases to review etiology and discover alternate diagnoses. Hyperlinks among related diagnoses allow for instant cross-reference within the tool.

Powered for handheld devices by Unbound Medicine, a leading provider of knowledge management solutions and mobile information resources for healthcare, Diagnosaurus 2.0 for the PDA can be downloaded for free at Diagnosaurus.com. In addition to providing updated content, Diagnosaurus 2.0 for the PDA offers a new bookmarking tool that enables users to mark and return to important information, as well as extended support for the latest handheld devices. Diagnosaurus 2.0 retains a concise, bulleted format that is ideal for PDA, with the answers medical professionals need just a tap away.

"Making authoritative medical information widely available to health professionals quickly and easily is our key objective with Diagnosaurus," said Michael Hays, vice president of McGraw-Hill Professional's Digital group. "This diagnostic tool puts key information one click away at all times and allows physicians do their jobs more efficiently and effectively."

A web-based version of Diagnosaurus 2.0 is also available with a subscription to McGraw-Hill Professional's AccessMedicine.com, an innovative online service that provides the medical community with instant answers to clinical questions from trusted sources. As with Diagnosaurus for the PDA, Diagnosaurus on AccessMedicine allows medical professionals and students to browse by symptom, disease, or organ system and to instantly receive information. Mining the rich resources of AccessMedicine, the web-based version of Diagnosaurus substantively enhances those search results by linking to related information on lab tests, possible complications, prevention, prognosis, treatment, and much more.

Diagnosaurus 2.0 is the latest medical reference tool offered by McGraw-Hill Professional. Other digital medical references offered by McGraw-Hill Professional include AccessMedicine.com, Harrison's Online, AccessSurgery.com, and HarrisonsPractice.com.

About McGraw-Hill Professional
McGraw-Hill Professional is a leading global provider of general interest, business, multimedia and computer titles, and reference works that include materials for the scientific, technical and medical communities. It is a unit of McGraw-Hill Education, a leading global provider of instructional, assessment and reference solutions that empower professionals and students of all ages. McGraw-Hill Education has offices in 33 countries and publishes in more than 40 languages. Additional information is available at http://www.mheducation.com.

About Unbound Medicine
Unbound Medicine, Inc. develops next-generation knowledge management systems for healthcare. The company's handheld, wireless and Web-based technology platform and its information architecture services help partners provide healthcare professionals with advanced systems for acquiring, managing and sharing knowledge. Additional information is available at http://www.unboundmedicine.com.

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