- ^ Stockman A, Boralevi F, Taïeb A, Léauté-Labrèze C (2007). "SACRAL syndrome: spinal dysraphism, anogenital, cutaneous, renal and urologic anomalies, associated with an angioma of lumbosacral localization". Dermatology. 214 (1): 40–5. doi:10.1159/000096911. PMID 17191046. S2CID 22792688.