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The authors declare no competing interests.
KB and BH supervised this project. KB and JB planned the experiments and analyzed data. MvdH carried out the clinical evaluation and the clinical diagnostic workup. ND performed dysmorphological evaluation, genetic counseling, collected samples and initiated genetic testing. KH performed and analyzed CGH array analysis. SB performed and analyzed custom array analysis. BH wrote the manuscript. All authors reviewed and approved the final version of the manuscript.