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van der Kallen, Hilde TH, Natasja JH Raijmakers, Judith AC Rietjens, Alex A. van der Male, Herman J. Bueving, Johannes JM van Delden, ja Agnes van der Heide. Opinions of the Dutch Public On Palliative Sedation: A Mixed-methods Approach. Royal College of General Practitioners, 2013.

van der Kallen, Hilde TH, et al. Opinions of the Dutch Public On Palliative Sedation: A Mixed-methods Approach. Royal College of General Practitioners, 2013.