Ghassibé, M., Bernier, V., Boon, L., & Vikkula, M. (2006). A novel mutation in the MSX2 homeobox gene of a family with foramina parietalia permagna, headache and vascular anomaly. European Journal of Pediatrics, 165(10), 734-735. https://doi.org/10.1007/s00431-006-0138-8 (Original work published 2006)