Vertigo - positional
Avoid head positions that trigger positional vertigo.
Cummings CW, Flint PW, Haughey BH, et al. Otolaryngology: Head & Neck Surgery. 4th ed. St Louis, Mo: Mosby; 2005:3226.
Hain TC. Cranial nerve VIII: vestibulocochlear system. In: Goetz, CG, eds. Textbook of Clinical Neurology. 3rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 12.