Stability in Physiological Synchronicity on Salivary Cortisol and α-Amylase among African American Couples March 10, 2019 by IISBR This content is restricted to site members. If you are an existing user, please log in. New users may register below.Existing Users Log InUsername or EmailPassword Remember Me Forgot password? Click here to resetNew User RegistrationChoose a Display Name*First Name*Last Name*City*StateCountry*Email**Required field