FDA approves ecstasy (MDMA) trials to treat PTSD http://www.nytimes.com/2016/11/29/us/ptsd-mdma-ecstasy.html?hp&action=click&pgtype=Homepage&clickSource=story-heading&module=second-column-region®ion=top-news&WT.nav=top-news&_r=0
So it turns not that not only can't you trust much published research, you can't trust many meta-analyses either. http://retractionwatch.com/2016/09/13/we-have-an-epidemic-of-deeply-flawed-meta-analyses-says-john-ioannidis/