RT Journal Article SR Electronic T1 Electronystagmographic studies of small vertical fixation movements. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 37 OP 40 DO 10.1136/bjo.54.1.37 VO 54 IS 1 A1 Huddleston, H F YR 1970 UL http://bjo.bmj.com/content/54/1/37.abstract AB