Chen, «The Clatter of the Hospital Room.»

Ibid.

Gabriela Torres, «Should Doctors Be Allowed to Nap on the Job?» BBC News, May 16, 2015, .

Timothy Morgenthaler, «Awake at the Wheel: Healthy Sleep Project Launches Campaign to Decrease Avoidable Drowsy Driving-Related Motor Vehicle Accidents,» The Huffington Post, November 11, 2014, .