Mobile app for personalized sleep–wake management for shift workers: A user testing trial oleh Jade M. Murray, Michelle Magee, Emma S. Giliberto, Lauren A. Booker, Andrew J. Tucker, Beth Galaska, Sara M. Sibenaller, Sharon A. Baer, Svetlana Postnova, Thijs A.C. Sondag, Andrew J.K. Phillips, Tracey L. Sletten, Mark E. Howard, Shantha M.W. Rajaratnam