The effects of melatonin versus placebo on delirium in hip fracture patients: study protocol of a randomised, placebo-controlled, double blind trial.

Jonghe, A. de, Munster, B.C. van, Oosten, H.E. van, Goslings, J.C., Kloen, P., Rees, C. van, Wolvius, R., Velde, R. van, Levi, M.M., Korevaar, J.C., Rooij, S.E. de, AMSTERDAM DELIRIUM STUDY GROUP. The effects of melatonin versus placebo on delirium in hip fracture patients: study protocol of a randomised, placebo-controlled, double blind trial. BMC Geriatrics: 2011, 11(34)