The CareWell-primary care program: design of a cluster controlled trial and process evaluation of a complex intervention targeting community-dwelling frail elderly
Franca GH Ruikes*, Antoinette RM Meys*, Gijs van de Wetering, Reinier P Akkermans, Betsie GI van Gaal, Sytse U Zuidema, Henk J Schers, Theo van Achterberg and Raymond TCM Koopmans