Ethnicity as a risk factor for obstructive sleep apnea: comparison of Japanese descendants and white males in São Paulo, Brazil.
Genta PR, Marcondes BF, Danzi NJ, Lorenzi-Filho G. Ethnicity as a risk factor for obstructive sleep apnea: comparison of Japanese descendants and white males in São Paulo, Brazil. Braz J Med Biol Res. 2008 Aug; 41(8):728-33.