van den Berg, BBrouwer, Wvan Exel, JKoopmanschap, M2025-03-182025-03-18200515386676https://rivm.openrepository.com/handle/10029/640850Economic valuation of informal care: the contingent valuation method applied to informal caregivingArticleHealth Econ 2005; 14(2):169-832025-03-18