Sleep disorders and work performance: findings from the 2008 National Sleep Foundation Sleep in America poll.
Swanson LM, Arnedt JT, Rosekind MR, Belenky G, Balkin TJ, Drake C. Sleep disorders and work performance: findings from the 2008 National Sleep Foundation Sleep in America poll. J Sleep Res. 2011 Sep; 20(3):487-94.