1. Heart rate variability: exploring age, sex & concussion symptoms in youth athletes. Issue 11 (25th May 2017) Authors: Paniccia, Melissa; Lee, Verweel; Taha, Tim; Keightley, Michelle; Thomas, Scott; Reed, Nick Journal: British journal of sports medicine Issue: Volume 51:Issue 11(2017) Page Start: A41 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗