Up to 20% of MS diagnoses are wrong, like Christina Applegate's. Here's what doctors say patients should know.

The Quick Take

Up to 20% of MS diagnoses are wrong, like Christina Applegate's. Here's what doctors say patients should know. CBS News ‘Back at Square One’: Christina Applegate Says Her M.S. Was Misdiagnosed The New York Times Why many MS patients like Christina Applegate are misdiagnosed NBC News Christina Applegate, a leading MS advocate, says doctors found she doesn’t have the disease after all CNN ‘It’s real