Russell EJ. et al "CT of the inferomedial orbit and the lacrimal drainage apparatus: normal and pathologic anatomy"   AJR Am J Roentgenol. 1985 Dec;145(6):1147-54
Ko MK. et al "Morphological variations of the peripapillary circle of Zinn-Haller by flat section"   Br J Ophthalmol. 1999 Jul;83(7):862-6
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