PT - JOURNAL ARTICLE ED - , TI - Ultrasonography in Ophthalmology AID - 10.1136/bjo.54.9.637-a DP - 1970 Sep 01 TA - British Journal of Ophthalmology PG - 637--637 VI - 54 IP - 9 4099 - http://bjo.bmj.com/content/54/9/637.2.short 4100 - http://bjo.bmj.com/content/54/9/637.2.full SO - Br J Ophthalmol1970 Sep 01; 54