The study has been renewed through April, 2005 to extend patient follow-up for a minimum of five years. Dr. Kelsey (U01HL64829) of the Data Coordinating Center at the University of Pittsburgh will continue the follow-up, develop sex-specific incremental outcome models to evaluate the prognostic value of female reproductive variables, assess cost effectiveness of the WISE testing techniques, and continue data analyses. Dr. Reis (U01HL64914) will study the immunologic basis of coronary disease in women, focusing on the role of inflammation and cytokine production. He will measure several cytokines and cytokine-related proteins and genotypes in approximately 900 stored samples from WISE participants. Dr. Pepine (U01HL64924) will study the renin angiotensin system in coronary microvascular dysfunction, focusing on whether polymorphisms of the renin-angiotensin/kallikrein-kinin systems and beta-adrenergic receptors polymorphisms are associated with abnormal coronary microvascular function determined by coronary flow reserve measurements.