RT Journal Article
SR Electronic
T1 WILLIAM LANG
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP 568
OP 572
DO 10.1136/bjo.21.10.568
VO 21
IS 10
YR 1937
UL http://bjo.bmj.com/content/21/10/568.abstract
AB