2011
• Implementing patient reported outcome measures (PROMs) in palliative care - users’ cry for help
• What do palliative care patients and their relatives think about research in palliative care? - a systematic review.

2010
• A Proposed Taxonomy of Terms to Guide the Clinical Trial Recruitment Process.
• Phase III, Randomized, Double-blind, Placebo controlled study of long acting methyphenidate for cancer related fatigue: North Central Cancer Treatment Group and Mayo Clinic.
• Why do patients with cancer visit the emergency department near the end of life?

2009
• Development of the Palliative Care Needs Assessment Tool (PC-NAT) for use by multi-disciplinary health professionals,
• Nocebo hyperalgesia: How Anxiety is turned into Pain.

2007
•Nationwide monitoring of end-of-life care via the Sentinel Network of General Practitioners in Belgium: the research protocol of the SENTI-MELC study
• The evidence base of palliative medicine: is inpatient palliative medicine evidence-based?

2006
• Methodological and structural challenges in palliative care research: How have we fared in the last decades?
• Defining the patient population: one of the problems for palliative care research

2001
• Obtaining informed consent for clinical pain research: patients' concerns and information needs

2000
•What influences participation in clinical trials in palliative care in a cancer centre?