The effect of continuous positive airway pressure usage on sleepiness in obstructive sleep apnoea: real effects or expectation of benefit?
Crawford, M. R., Bartlett, D. J., Coughlin, S. R., Phillips, C. L., Neill, A. M., Espie, C. A., Dungan, G. C., Wilding, J. P. H., Calverley, P. M. A., Grunstein, R. R., Marshall, N. S.