The authors regret that one of the author was missing on the authors list, namely Dr. J.A. Wilschut. Dr Wilschut is the third author, so the order should be: Jan-Willem Groena, Sissi Grosfeldb, Janneke A. Wilschuta,…. Furthermore, the authors regret that the second initial of the last author Dr. Margriet Mullender was misspelled. This should be G. instead of M. So it should be Margriet G. Mullendera. The authors would like to sincerely apologise for any inconvenience caused.