RT Journal Article
SR Electronic
T1 ABSTRACTS
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP 663
OP 664
DO 10.1136/bjo.21.12.663
VO 21
IS 12
YR 1937
UL http://bjo.bmj.com/content/21/12/663.abstract
AB