US Soccer ban heading the ball for children over fears of concussion and head injuries, The Independent

Children aged 10 and under will not be allowed to head the ball while 11 to 13 year-olds will have headers limited in training

Soccer header: Concussion concerns lead to header ban for kids under 11

Introduction, Is Soccer Bad for Children's Heads?: Summary of the IOM Workshop on Neuropsychological Consequences of Head Impact in Youth Soccer

Preventing Concussion in Athletes and Young Children

Will Soccer's New Header Rules Make Kids Safer?

Football: How dangerous is heading the ball?

Brain Injuries in Sport: The Invisible Killer :: Morgan Sports Law

FAI facing pressure to ban heading ball at underage grades

Heading the ball banned in U.S. youth soccer - should B.C. follow suit?

FIFA's CTE Problem: Are Soccer Regulators Doing Enough to Prevent Brain Injuries?

How heading a soccer ball can hurt the brain - The Washington Post

English FA won't follow US in banning children under 13 from heading the ball

Does heading a football lead to brain damage? It's complicated