In my post “Should you trust a medical journal?” I think I might have been a bit unfair. Not on The Lancet, which I have since discovered, via comments on David Roodman’s blog, has something of a track record of publishing sensational but not exactly evidence-based social science articles, but rather on Ernst Spaan et al. for challenging the systematicness of their systematic review of health insurance impacts in developing countries. It’s not that I now think Spaan et al. did a wonderful job. It’s just that I think they probably shouldn’t have been singled out in the way they were.