Rugby's Head Injury Assessment test: What happens after you fail / Grieving dad's plea to WorkSafe to investigate rugby links between head knocks and brain injury / Violence at Wairoa weekend rugby game leaves people with injuries / The worrying biological changes found in rugby players who suffered several concussions / Editorial: Tragedy of brain injury is a reminder of rugby's brutal reality / 'There is another way': how schools are tackling rugby's head injury crisis / Coedely: Rugby club remembers crash victims at match / Phil Vickery and Gavin Henson among rugby players in brain injury legal claim