Devaraj U, Krishnaswamy UM, Balla S, Pinto AM, Venkatnarayan K, Ramachandran P, Veluthat C, Souza GD. Prevalence and Risk Factors for OSA among Urban and Rural Subjects in Bengaluru District, South India: A Cross-sectional Study. Indian Sleep Med 2021; 16 (1):5-9.