P14.08: Pyloric atresia in lethal junctional epidermolysis bullosa due to mutation in the integrin β4 (ITGB4) gene. (1st October 2015) - Witters, I.; Al Nasiry, S.; Vreeburg, M.; Luesink, M.; Coumans, A.; Willekes, C.; Pieters, M.; Mulder, T.; van der Hoeven, M.