• Hartig, M. B., K. Hörtnagel, B. Garavaglia, G. Zorzi, T. Kmiec, T. Klopstock, K. Rostasy, M. Svetel, V. S. Kostic, M. Schuelke, E. Botz, A. Weindl, I. Novakovic, N. Nardocci, H. Prokisch, and T. Meitinger. 2006. Genotypic and phenotypic spectrum of PANK2 mutations in patients with neurodegeneration with brain iron accumulation. Ann. Neurol. 59:248256.
  • Hayflick, S. J., S. K. Westaway, B. Levinson, B. Zhou, M. A. Johnson, H. Ching, and J. Gitschier. 2003. Genetic, clinical, and radiographic delineation of Hallervorden-Spatz syndrome. N. Engl. J. Med. 348:3340.
  • Kumar, N., C. J. Boes, D. Babovic-Vuksanovic, and B. F. Boeve. 2006. The “eye-of-the-tiger” sign is not pathognomonic of the PANK2 mutation. Arch. Neurol. 63:292293.
  • McNeill, A., D. Birchall, S. J. Hayflick, A. Gregory, J. F. Schenk, E. A. Zimmerman, H. Shang, H. Miyajima, and P. F. Chinnery. 2008. T2* and FSE MRI distinguishes four subtypes of neurodegeneration with brain iron accumulation. Neurology 70:16141619.
  • Strecker, K., S. Hesse, F. Wegner, O. Sabri, J. Schwarz, and J. P. Schneider. 2007. Eye of the tiger sign in multiple system atrophy. Eur. J. Neurol. 14:e12.
  • Valentino, P., G. Annesi, I.C. Cirò Candiano, F. Annesi, D. Civitelli, P. Tarantino, F. Naso, P. Spadafora, S. Carrideo, E. V. De Marco, D. Consoli, M. Zappia, A. Gambardella, and A. Quattrone. (2006). Genetic heterogeneity in patients with pantothenate kinase-associated neurodegeneration and classic magnetic resonance imaging eye-of-the-tiger pattern. Mov Disord, 21(2):252254.