OP17.06: Comparison of two fetoscopic open neural tube defect repairs: single‐layer versus three‐layer spinal closure. (30th September 2019) - Belfort, M.A.; Sanz Cortes, M.; Shamshirsaz, A.; Espinoza, J.; Nassr, A.; Johnson, R.M.; Olutoye, O.O.; Lee, T.; Keswani, S.; Whitehead, W.