PT  - JOURNAL ARTICLE
ED  - ,
TI  - State Recognition for Sight-Testing Opticians
AID  - 10.1136/bjo.7.6.272
DP  - 1923 Jun 01
TA  - British Journal of Ophthalmology
PG  - 272--274
VI  - 7
IP  - 6
4099  - http://bjo.bmj.com/content/7/6/272.short
4100  - http://bjo.bmj.com/content/7/6/272.full
SO  - Br J Ophthalmol1923 Jun 01; 7