%0 Journal Article %A P J Nicholson %T How to undertake a systematic review in an occupational setting %D 2007 %R 10.1136/oem.2006.031153 %J Occupational and Environmental Medicine %P 353-358 %V 64 %N 5 %U https://oem.bmj.com/content/oemed/64/5/353.full.pdf