• Evaluation of New Zealand’s bicycle helmet law (2012) https://www.nzma.org.nz/journal/read-the-journal/all-issues/2010-2019/2012/vol-125-no-1349/article-clarke 49 comments 24/1/2015

• Evaluation of New Zealand’s bicycle helmet law (It was a massive failiure) https://www.nzma.org.nz/journal/read-the-journal/all-issues/2010-2019/2012/vol-125-no-1349/article-clarke 37 comments 24/1/2015 bicycling