Featured Article: Bodor GS, Porter S, Landt Y, Ladenson JH. Development of monoclonal antibodies for an assay of cardiac troponin I and preliminary results in suspected cases of myocardial infarction. Clin Chem 1992;38:2203–14.1 In the early 1980s, David N. Dietzer and I started building a team to develop monoclonal antibodies to the isoenzymes then used for detecting cardiac damage: creatine kinase (CK)2 and lactate dehydrogenase. In the clinical laboratory, these tests, which had become widely used, entailed the use of electrophoretic procedures that took a few hours to perform. Although initially this approach was adequate, the advent of new therapies to open clotted arteries (streptokinase and tissue plasminogen activator, cleared by the US Food and Drug Administration in 1982 and 1987, respectively) placed a premium on prompt treatment. This conflict between the clinical need to treat within 4–6 h after a myocardial infarction (MI) and a laboratory procedure requiring 2 to 3 h led to “interesting” relationships between clinicians and clinical chemists. We were performing up to 7 routine electrophoresis runs of CK-MB isoenzymes a …