Association of superior oblique muscle volumes with the presence or absence of the trochlear nerve on high-resolution MR imaging in congenital superior oblique palsy.
Yang HK, Lee DS, Kim JH, Hwang JM.
AJNR Am J Neuroradiol. 2015 Apr;36(4):774-8. doi: 10.3174/ajnr.A4202. Epub 2015 Jan 2.