3 executives plead guilty to hiding medical device defect
Three former executives of Magellan Diagnostics, a North Billerica, Mass.-based medical device company, have pleaded guilty to charges related to concealing a malfunction in lead-testing devices that produced inaccurately low results for thousands of children and other patients.

Three former executives of Magellan Diagnostics, a North Billerica, Mass.-based medical device company, have pleaded guilty to charges related to concealing a malfunction in lead-testing devices that produced inaccurately low results for thousands of children and other patients.