BOSTON--(BUSINESS WIRE)--Averion International Corp. (OTCBB:AVRO), a clinical research organization (CRO) specializing in oncology, medical devices, dermatology and nephrology, today announced that it has strengthened its European operations by opening four European-based offices. Averion has added many professionals, including clinicians with extensive experience conducting oncology clinical trials, to support expanded European operations, including staffing the new facilities.