“The Berlin Questionnaire Is a More Sensitive Tool Than the Epworth Sleepiness Scale for Screening Obstructive Sleep Apnea”. International Journal of Biomedical Research 7, no. 3 (March 30, 2016): 122–124. Accessed March 29, 2026. https://ssjournals.co.in/index.php/ijbr/article/view/3032.