The pain assessment for lower back symptoms (PAL-S)- Qualitative development and cognitive evaluation of a new patient reported outcome measure for the assessment of low back pain
Abstract
Authors
K.P. McCarrier M.L. Martin A. Ramasamy M. Quintanar-Solares D.M. Bushnell H. Liedgens S.I. Blum C.E. Argoff R. Freynhagen M.S. Wallace D.L. Patrick