porpus: patient-oriented prostate utility scale
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  19. Development and validation of a utility weighting function for the PORPUS- Patient Oriented Prostate Utility Scale Tomlinson G, Bremner KE, Ritvo P, Naglie G, Krahn MD. Medical Decision Making, published online 8 June 2011 DOI: 10.1177/0272989X11407203

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