PT - JOURNAL ARTICLE AU - Williamson, K F TI - Petrus Johannes Waardenburg, MD. AID - 10.1136/bjo.64.3.224 DP - 1980 Mar 01 TA - British Journal of Ophthalmology PG - 224 VI - 64 IP - 3 4099 - http://bjo.bmj.com/content/64/3/224.short 4100 - http://bjo.bmj.com/content/64/3/224.full SO - Br J Ophthalmol1980 Mar 01; 64