TY  - BOOK
AU  - Streiner,D L
AU  - Norman,G R
TI  - Health measurement scales : : a practical guide to their development and use / 
SN  - 0198528477
PY  - 2003///
CY  - Oxford : 
PB  - Oxford University Press, 
KW  - Measurement
KW  - Statistical methods
ER  -