As late as at least 2010, source code wasn't required for Nature or NEJM. People...

		carbocation on April 23, 2013 \| parent \| context \| favorite \| on: Grad Student Who Took Down Reinhart and Rogoff Exp... As late as at least 2010, source code wasn't required for Nature or NEJM. People could request it from you, but it wasn't required to actually be submitted up front.