RT Journal Article SR Electronic T1 Atrophy of the superior oblique muscle JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 122 OP 123 DO 10.1136/jnnp.2007.142463 VO 8 IS 2 A1 U-M Sheerin A1 A Trip A1 F Schon YR 2008 UL http://pn.bmj.com/content/8/2/122.abstract AB