We import extra systematic reviews from a number of sources and we use special filters to identify them. It has come to our attention that one of the filters was too sensitive and therefore brought it a number of false positives ie tagged as systematic reviews and are clearly not!

So, we have started to clean these up and we’re currently removing 42,956 of them. Due to the method employed we’re also removing some true positives and therefore, once these are all removed, we will reimport these true positives! Convoluted, but the best way of getting this right.