PT - JOURNAL ARTICLE AU - Nicholson, B P AU - Lystad, L D AU - Emch, T M AU - Singh, A D TI - Idiopathic dural optic nerve sheath calcification AID - 10.1136/bjo.2008.157032 DP - 2011 Feb 01 TA - British Journal of Ophthalmology PG - 290--290 VI - 95 IP - 2 4099 - http://bjo.bmj.com/content/95/2/290.short 4100 - http://bjo.bmj.com/content/95/2/290.full SO - Br J Ophthalmol2011 Feb 01; 95