That "shocking" melatonin study? Not peer-reviewed and misclassified millions of users! Sicker patients got labeled as "melatonin users", completely flawed comparison. #melatonin #heartfailure #studyflaws #peerreview #healthresearch

Not surprising. The demographic breakdown on Twitter is definitely different than the nation at large. yhoo.it/YuBdTj #studyflaws