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- de Vries, S. (author), Boere-Boonekamp, M.M. (author), Klein Ikkink, A.J. (author), Boomsma, L.J. (author), Heetman-Cleton, J. (author), Kamphuis, M. (author), Lobo, C.M. (author), Mentink, P. (author), Middeldorp, I. (author), van Raalte, L.F. (author), van Sleuwen, B.E. (author) article 2012