PHP88 - Developing Item Pools for Physical Functioning, Social Relationships, and Positive Mindset to Measure Health-Related Quality of Life (HRQOL) in the Singapore Population. - Uy, EJ; Xiao, Y; Yeo, PT; Xin, X; Pua, Y; Lee, GL; Kwan, YH; Vaingankar, JA; Subramaniam, M; Chan, MF; Kumar, N; Bautista, D; et al. (Value in Health, 2016)