RT Journal Article SR Electronic T1 Mikrostrabismus JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 512 OP 512 DO 10.1136/bjo.68.7.512-a VO 68 IS 7 A1 T. J. Ffytche YR 1984 UL http://bjo.bmj.com/content/68/7/512.2.abstract AB