PT - JOURNAL ARTICLE AU - CREIG S HOYT TI - So goes the flow—but not always AID - 10.1136/bjo.85.2.128 DP - 2001 Feb 01 TA - British Journal of Ophthalmology PG - 128--129 VI - 85 IP - 2 4099 - http://bjo.bmj.com/content/85/2/128.short 4100 - http://bjo.bmj.com/content/85/2/128.full SO - Br J Ophthalmol2001 Feb 01; 85