%0 Journal Article %K animal experimentation %K Animals %K bias %K Research Design %K Review Literature as Topic %B PloS One %D 2014 %G eng %N 6 %P e98856 %R 10.1371/journal.pone.0098856 %T The need for randomization in animal trials: an overview of systematic reviews %V 9 %8 2014 %! The need for randomization in animal trials