Herbella, FA; Mudo M; Delmonti C; Braga FM; Del Grande JC (December 2001). "'Raccoon eyes' (periorbital haematoma) as a sign of skull base fracture". Injury. 32 (10): 745–47. doi:10.1016/S0020-1383(01)00144-9. PMID11754879.
Herbella, FA; Mudo M; Delmonti C; Braga FM; Del Grande JC (December 2001). "'Raccoon eyes' (periorbital haematoma) as a sign of skull base fracture". Injury. 32 (10): 745–47. doi:10.1016/S0020-1383(01)00144-9. PMID11754879.