EuroQol plenary meeting Rotterdam 1997, 2-3 October : discussion papers / R.E. Rabin ... [et al.]The measurement and valuation of health status using EQ-5D: a European perspective : evidence from the EuroQol BIOMED Research Programme / ed. by Richard Brooks, Rosalind Rabin and Frank de Charro24th scientific plenary meeting of the EuroQol Group, Kijkduin-The Hague, the Netherlands, September 13-15, 2007 : proceedings / ed. by Jan Busschbach, Rosalind Rabin, Frank de Charro