Authors: RACZEK AE WARE JE BJORNER JB GANDEK B HALEY SM AARONSON NK APOLONE G BECH P BRAZIER JE BULLINGER M SULLIVAN M

Citation: Ae. Raczek et al., COMPARISON OF RASCH AND SUMMATED RATING-SCALES CONSTRUCTED FROM SF-36PHYSICAL FUNCTIONING ITEMS IN 7 COUNTRIES - RESULTS FROM THE IQOLA PROJECT, Journal of clinical epidemiology, 51(11), 1998, pp. 1203-1214