Borgermans, Liesbeth A.D.; Goderis, Geert; Ouwens, Marielle; Wens, Johan; Heyrman, Jan; Grol, Richard P.T. M.
(Igitur, 2008-04-24)
Methods: A review of systematic reviews was performed. Four databases (MEDLINE database of the National Library of Medicine, COCHRANE database of Systematic Reviews, the Cumulative Index to Nursing and Allied Health ...