PT - JOURNAL ARTICLE AU - Anu Mathew AU - Thomas Stumpf AU - Charles McGhee TI - Impression cytology: implications for ocular surface squamous neoplasia AID - 10.1136/bjo.2007.116657 DP - 2008 Jan 01 TA - British Journal of Ophthalmology PG - 157--158 VI - 92 IP - 1 4099 - http://bjo.bmj.com/content/92/1/157.2.short 4100 - http://bjo.bmj.com/content/92/1/157.2.full SO - Br J Ophthalmol2008 Jan 01; 92