Smirnova, A., Bell, S. H., Tracy, C. S., & Upshur, R. E. (2011). Still dizzy after all these years: A 90-year-old woman with a 54-year history of dizziness. BMJ Publishing Group.

Smirnova, Alina, Stephanie H. Bell, C Shawn Tracy, و Ross EG Upshur. Still Dizzy After All These Years: A 90-year-old Woman With a 54-year History of Dizziness. BMJ Publishing Group, 2011.

Smirnova, Alina, Stephanie H. Bell, C Shawn Tracy, و Ross EG Upshur. Still Dizzy After All These Years: A 90-year-old Woman With a 54-year History of Dizziness. BMJ Publishing Group, 2011.