Exemplar International and Roche Diagnostics Announce Substance Abuse Screening Program, TesTrak

SARASOTA, FL (August 15, 2001) - Exemplar International, Inc., formerly Healthcomp Evaluation Services Corporation (Pink Sheets: HCEV), a subsidiary of the Diligenti Group, a national provider of healthcare data management and occupational health services, and Roche Diagnostics Corporation, the leading U.S. diagnostics company, a U.S. affiliate of Roche Diagnostics, which is a Division of F. Hoffmann La Roche (OTCBB: RHHBY), announced today that they are forming an exclusive partnership to market and distribute TesTrak, a sophisticated substance abuse prevention and screening program.

This distinctive program combines Roche Diagnostics' nationally recognized rapid drug and alcohol testing devices with Exemplar's broad-based administrative services to create TesTrak, the most comprehensive integrated substance abuse solution available today. TesTrak services include laboratory certifications of positive drug screens, extensive reporting options, including access to test results via the Internet, and management and statistical reports. The integrated TesTrak program will be marketed and sold throughout the United States by Roche's sales team with service availability scheduled for August 2001.

Randy Cole, Roche Diagnostic's Director of Sales and Marketing, stated "The TesTrak™ advantage stems from its state-of-the-art information technology and communications system and places an intense focus on service delivery. We are particularly excited about the comprehensive scope of this product offering as a result of the service capabilities offered by Exemplar."

"The TesTrak™ approach is fundamental to developing an integrated occupational health solution," said Harry Chororos, Exemplar's Senior Vice President. "As TesTrak™ speeds virtually instant, comprehensive and highly accurate result data, key decisions can be made in less time. Exemplar is very pleased to have Roche Diagnostics as the technology partner in this program."

About Exemplar International

Exemplar, a subsidiary of the Diligenti Group, a global life sciences company with offices in New York, London and Paris, markets occupational health and medical assessment products and services nationally, including data management, substance abuse, on-site medical evaluation, wellness, medical staffing and related health management services and programs. These services are supported by the Company's sophisticated, proprietary software that is used to gather, maintain, analyze and report data concerning a customer's employees covered by some or all of the Company's health screening programs or by self-administered or third-party programs. These systems are designed to interface with some of the most sophisticated healthcare reporting systems in the nation.

Exemplar operates a fleet of vehicles that are fully equipped with X-ray, mammography, EKG, pulmonary, hearing, vision and osteoporosis testing equipment and offers Clinic Management Network services that provide centralized management of healthcare facilities, allowing the Company's clients to integrate standard fixed site services with its mobile service organization using state-of-the-art technology and clinic review protocols. By performing screening services on-site, the mobile units provide significant cost savings for employers.

About Roche Diagnostics

Headquartered in Basel, Switzerland, Roche is one of the world's leading research-oriented healthcare groups in the fields of pharmaceuticals, diagnostics and vitamins. Roche's products and services address prevention, diagnosis and treatment of diseases, thus enhancing well-being and quality of life. Roche has approximately 64,000 employees and sells its products in over 170 countries. Roche's Diagnostics Division supplies a wide array of innovative testing products and services to researchers, physicians, patients, hospitals and laboratories worldwide. Roche Diagnostics Corporation, based in Indianapolis, is the North American headquarters for the diagnostics business of the company.

Except for historical financial information that may be contained herein, the matters set forth in this release are forward-looking statements that are dependent on certain risks and uncertainties, including but not limited to such factors as market demand, pricing and changes in worldwide economic conditions.