Circulation. 84(3):991–1003, SEPTEMBER 1991 PMID: 1884474 Issn Print: 0009-7322 Publication Date: September 1991 Print Structure, Function, and Regulation of Troponin C Michael Parmacek;Jeffrey Leiden; + Author Information Howard Hughes Medical Institute (J.M.L.) and the Departments of Internal Medicine (M.S.P., J.M.L.), University of Michigan Medical Center, and the Ann Arbor Veterans Administration Hospital (M.S.P.), Ann Arbor, Mich. Checking for direct PDF access through Ovid Abstract Abstract unavailable for this article.