In the 'Nederlands Tijdschrift voor Geneeskunde' (Dutch journal) you'll find an online course
'Searching for medical information'; course in Dutch, made by information specialists.
You can find this online course in the left menu of the CMB-webite under 'Manuals'.
If you need help, plase contact the information specialists of the CMB. You can make an individual appointment for a literature search, please send an email to firstname.lastname@example.org
You can also participate in a CMB-workshop Searching for Literature.