| Inequalities in access to medical care by income in developed countries E Van Doorslaer, C Masseria, X Koolman Cmaj 174 (2), 177-183, 2006 | 1239 | 2006 |
| Explaining income‐related inequalities in doctor utilisation in Europe E Doorslaer, X Koolman, AM Jones Health economics 13 (7), 629-647, 2004 | 913 | 2004 |
| Explaining the differences in income‐related health inequalities across European countries E Doorslaer, X Koolman Health economics 13 (7), 609-628, 2004 | 716 | 2004 |
| On the interpretation of a concentration index of inequality X Koolman, E Van Doorslaer Health economics 13 (7), 649-656, 2004 | 310 | 2004 |
| Equity in the use of physician visits in OECD countries: has equal treatment for equal need been achieved E Van Doorslaer, X Koolman, F Puffer Measuring up: improving health system performance in OECD countries, 2002 | 229 | 2002 |
| Effective healthcare cost-containment policies: a systematic review N Stadhouders, F Kruse, M Tanke, X Koolman, P Jeurissen Health Policy 123 (1), 71-79, 2019 | 195 | 2019 |
| Physicians underestimate the importance of patient-centredness to patients: a discrete choice experiment in fertility care IWH Van Empel, EAF Dancet, XHE Koolman, WLDM Nelen, EA Stolk, ... Human reproduction 26 (3), 584-593, 2011 | 159 | 2011 |
| Health-related non-response in the British Household Panel Survey and European Community Household Panel: using inverse-probability-weighted estimators in non-linear models AM Jones, X Koolman, N Rice Journal of the Royal Statistical Society Series A: Statistics in Society 169 …, 2006 | 159 | 2006 |
| Effectiveness and costs of specialised physiotherapy given via ParkinsonNet: a retrospective analysis of medical claims data JHL Ypinga, NM de Vries, LHHM Boonen, X Koolman, M Munneke, ... The Lancet Neurology 17 (2), 153-161, 2018 | 138 | 2018 |
| The impact of having supplementary private health insurance on the use of specialists AM Jones, X Koolman, E Van Doorslaer Annales d'Economie et de Statistique, 251-275, 2006 | 137* | 2006 |
| Balancing equity and efficiency in health priorities in Ghana: the use of multicriteria decision analysis C Jehu-Appiah, R Baltussen, C Acquah, M Aikins, SA d'Almeida, ... Value in health 11 (7), 1081-1087, 2008 | 132 | 2008 |
| Spending more money, saving more lives? The relationship between avoidable mortality and healthcare spending in 14 countries R Heijink, X Koolman, GP Westert The European Journal of Health Economics 14, 527-538, 2013 | 131 | 2013 |
| Preferences for long-term care services: willingness to pay estimates derived from a discrete choice experiment AP Nieboer, X Koolman, EA Stolk Social science & medicine 70 (9), 1317-1325, 2010 | 122 | 2010 |
| Priority setting using multiple criteria: should a lung health programme be implemented in Nepal? R Baltussen, AHA Ten Asbroek, X Koolman, N Shrestha, P Bhattarai, ... Health policy and planning 22 (3), 178-185, 2007 | 122 | 2007 |
| The effect of income growth and inequality on health inequality: Theory and empirical evidence from the European Panel T Van Ourti, E Van Doorslaer, X Koolman Journal of Health Economics 28 (3), 525-539, 2009 | 103 | 2009 |
| The role of disability in explaining long-term care utilization CAM de Meijer, MA Koopmanschap, XHE Koolman, EKA van Doorslaer Medical Care 47 (11), 1156-1163, 2009 | 100 | 2009 |
| Dear policy maker: have you made up your mind? A discrete choice experiment among policy makers and other health professionals MA Koopmanschap, EA Stolk, X Koolman International Journal of Technology Assessment in Health Care 26 (2), 198-204, 2010 | 74 | 2010 |
| The influence of subjective life expectancy on health state valuations using a 10 year TTO FE Van Nooten, X Koolman, WBF Brouwer Health economics 18 (5), 549-558, 2009 | 70 | 2009 |
| The Dutch COVID-19 approach: regional differences in a small country LM Hoekman, MMV Smits, X Koolman Health Policy and Technology 9 (4), 613-622, 2020 | 66 | 2020 |
| Criteria for priority setting of HIV/AIDS interventions in Thailand: a discrete choice experiment S Youngkong, R Baltussen, S Tantivess, X Koolman, Y Teerawattananon BMC health services research 10, 1-9, 2010 | 65 | 2010 |
