- T Opthof: Department of Clinical and Experimental Cardiology, Heart Failure Research Center, Academic Medical Center, Meibergdreef 9, Room K2-111, 1105 AZ, Amsterdam, the Netherlands, t.opthof@inter.nl.net.
The impact factor of the Netherlands Heart Journal was stable at about 1.4 between 2009 and 2012. In 2013 it will break through the 2.0 barrier for the first time.