Comments on: Are node-based and stem-based clades equivalent? Insights from graph theory http://currents.plos.org/treeoflife/article/are-node-based-and-stem-based-clades-equivalent-insights-from-graph-theory/ Thu, 17 Sep 2015 18:00:27 +0000 hourly 1 http://wordpress.org/?v=4.2.4