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. 2017 Dec 24;84(3):381–388. doi: 10.1016/j.bjorl.2017.11.003

Table 1.

Overall characteristics of included studies.

Source City (country) Sample (gender) Mean age (years) ± standard deviation
McNerney, Coad, Burkard (2014)26 New York (USA) 30 patients 23.28 (±1.95)
Sousa, Suzuki (2014)27 São Paulo (Brazil) 25 patients 29 years (mean of 25–37 years)