PT  - JOURNAL ARTICLE
AU  - Naylor, E. J.
TI  - Astigmatic difference in refractive errors.
AID  - 10.1136/bjo.52.5.422
DP  - 1968 May 01
TA  - British Journal of Ophthalmology
PG  - 422--425
VI  - 52
IP  - 5
4099  - http://bjo.bmj.com/content/52/5/422.short
4100  - http://bjo.bmj.com/content/52/5/422.full
SO  - Br J Ophthalmol1968 May 01; 52