Demographic and illness characteristics of the sample.
dataset
posted on 2013-11-01, 03:13 authored by Peter J. Schulz, Uwe Hartung, Silvia Riva*
Have had back pain for more than 3 months.
**More than one answer.
N = 1259 unless otherwise noted.
Have had back pain for more than 3 months.
**More than one answer.
N = 1259 unless otherwise noted.
