1. No neurochemical evidence for brain injury caused by heading in soccer. Issue 9 (11th May 2007) Authors: Zetterberg, Henrik; Jonsson, Michael; Rasulzada, Abdullah; Popa, Cornel; Styrud, Ewa; Hietala, Max Albert; Rosengren, Lars; Wallin, Anders; Blennow, Kaj Journal: British journal of sports medicine Issue: Volume 41:Issue 9(2007) Page Start: 574 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗