TY - CPAPER
AU - Ostelo R.
AU - Hancock M.
AU - de Vet H.
AU - Knol D.
AU - Kamper S.
AU - Maher C.
BT - Boston International Forum X: Primary Care Research on Low Back Pain
CY - Boston, USA
LA - eng
LB - MS
PP - Boston, USA
PY - 2009
T2 - Boston International Forum X: Primary Care Research on Low Back Pain
TI - Reliability and validity of global perceived effect scales
ER -