Original Research

Internal consistency and item-total correlation of patient-reported outcome instruments and hemophilia joint health score v2.1 in US adult people with hemophilia: results from the Pain, Functional Impairment, and Quality of life (P-FiQ) study

Wang M, Batt K, Kessler C, Neff A, Iyer NN, Cooper DL, Kempton CL

Patient Preference and Adherence 2017, 11:1831-1839

Published Date: 25 October 2017