Petrillo, J; Cairns, J; (2011) Development of the EXACT-U: A Preference-Based Measure to Report COPD Exacerbation Utilities. Value in health, 14 (4). pp. 546-54. ISSN 1098-3015 DOI: https://doi.org/10.1016/j.jval.2010.10.032 Full text not available from this repository.

Petrillo, J; van Nooten, F; Jones, P; Rutten-van Mölken, M; (2011) Utility estimation in chronic obstructive pulmonary disease: a preference for change? PharmacoEconomics, 29 (11). pp. 917-32. ISSN 1170-7690 DOI: https://doi.org/10.2165/11589280-000000000-00000 Full text not available from this repository.

Petrillo, J; Cairns, J; Revicki, DA; (2010) Employing Multi-Attribute Utility Theory to Develop the Exact-U: A Preference-Based Measure for Copd Exacerbation Utilities. [Conference or Workshop Item] http://researchonline.lshtm.ac.uk/id/eprint/1820 Full text not available from this repository.

Petrillo, J; MacTier, S; Davies, E; Cairns, JA; (2009) DEVELOPMENT OF A PREFERENCE-BASED ALGORITHM TO REPORT UTILITIES FOR EXACERBATIONS OF COPD FROM THE EXACT. [Conference or Workshop Item] http://researchonline.lshtm.ac.uk/id/eprint/4486 Full text not available from this repository.

Petrillo, J; Cairns, J; (2008) Converting condition-specific measures into preference-based outcomes for use in economic evaluation. Expert review of pharmacoeconomics & outcomes research, 8 (5). pp. 453-61. ISSN 1473-7167 DOI: https://doi.org/10.1586/14737167.8.5.453 Full text not available from this repository.