There is an error in Table 5 of this article, which details the 2012 recommendations for episodic migraine.
In the published table, it notes that nadolol has a recommendation strength of “strong”, which is correct, but the quality of evidence should be listed as “moderate”, not “high”.
It also notes that riboflavin has a recommendation strength of “strong”, but the quality of evidence should be listed as “low”, not “moderate”.