The Need for Randomization in Animal Trials: An Overview of Systematic Reviews Hirst, Jennifer A. ; Howick, Jeremy ; Aronson, Jeffrey K. ; Roberts, Nia ; Perera, Rafael ; Koshiaris, Constantinos ; Heneghan, Carl Abstract Publication: PLoS ONE Pub Date: June 2014 DOI: 10.1371/journal.pone.0098856 Bibcode: 2014PLoSO...998856H