DNA (image) Harvard Medical School Share Print E-Mail Caption A Harvard Medical School study found that over the last decade genetic tests may have disproportionately misdiagnosed one cardiac condition -- hypertrophic cardiomyopathy (HCM) -- in black Americans. Credit N/A Usage Restrictions This is a stock image. HMS does not own the rights to the image Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.