Journal article (2011) - Peter J.H. Hulshof (author), R Boucherie (author), R.J. Boucherie (author), Ingrid M.H. Vliegen (author), Maartje E. Zonderland (author), J. T. Theresia van Essen (author), J.T. Theresia van Essen (author), Theresia Theresia van Essen (author), J. Theresia van Essen (author), J. T. van Essen (author), J. Theresia van Essen (author), Theresia van Essen (author), J.T. van Essen (author), J. van Essen (author), J. Theresia Theresia van Essen (author), Erwin W. Hans (author), E. W. Hans (author), J. L. Hurink (author), Johann L. Hurink (author), Nikky Kortbeek (author), Nelly Litvak (author), Peter Vanberkel (author), Peter T. Vanberkel (author), Egbert van der Veen (author), Bart Veltman (author)