5Epley JM. The canalith repositioning procedure: for treatment of benign paroxysmal positional vertigo. Otolaryngol Head Neck Surg, 1992,107:399-404.
6Korn GP, Doriqueto RS, Gananea MM, et al. Epley' s maneuver in the same session in benign positional paroxysmal vertigo. Rev Bras Otorrinolaringol, 2007,73 : 533 -539.
7Epley JM. Positional vertigo related to semicircular canalithiasis. Otolaryngol Head Neck Surg, 1995,112 : 154-161.