Tripathy, K., Tomar, A. S., Sidhu, T., & Dada, T. (2021). A 10-year-old boy with dystonia, expression-less facies, and tremors referred for ophthalmic examination. Oman Journal of Ophthalmology, 14(2), 128-130. https://doi.org/10.4103/ojo.ojo_262_2017