Cambridge Statistical Service 675 Massachusetts Ave # 3 Statistical Innovations at Cytel.com. Specializing in clinical trial design tools, services, and exact statistics applications Cambridge MA Statistical Service Cytel Software www.cytel.com Cytel Cytel Inc. StatXact StatXact PROCs LogXact Egret binomial analysis East logistic regression clinical SPSS SAS interim monitoring exact statistics clinical trial design sequential trials adaptive clinical trials early stopping Cytel Cytel Inc. StatXact StatXact PROCs LogXact Egret binomial analysis East logistic regression clinical SPSS SAS interim monitoring exact statistics clinical trial design sequential trials adaptive clinical trials early stopping Business Reviews Cytel Software Testimonials