Health Care

FOX Business Briefs 5/13

UnitedHealth Group CEO Andrew Witty is stepping down; Honda, Nissan expects to be hit hard by U.S. tariffs; United adds caviar service in race for super premium travelers; Amazon is expanding ads on Prime Video.

New concussion smartphone app to launch in the US

Murdoch Children's Research Institute clinical science research director Dr. Vicki Anderson explains how the app will help parents and coaches rapidly assess injuries and determine how to treat them on 'Varney & Co.'