September 7, 2010 4:48 pm Doctors Say Some Kids' Concussions Going Undiagnosed New studies raise concerns that too many kids are suffering from dangerous concussions on sports fields and not getting the medical help they need. Local 0:55 Halle Berry helps unveil menopause research bill during Capitol Hill visit 2:54 ‘Healthy moms equal healthy babies': Children's National offers maternal health care 2:14 Opioid crisis: National drug take back day on Saturday 2:55 Concussion treatment: Returning to school and limiting screen time may help, study finds 2:39 What to know about ADHD medication and pregnancy