Compared to what? An analysis of comparators in trials informing the National Institute of Clinical Excellence (NICE) low back pain guideline Geronimo Bejarano; Ben Csiernik; Joshua R. Zadro; Giovanni E. Ferreira;

The brief pain inventory¿Interference Subscale has acceptable reliability but questionable validity in acute back and neck pain populations Caitlin M.P. Jones; Chung-Wei Christine Lin; Joshua Zadro; Arianne Verhagen; Mark Hancock; Raymond Ostelo;

The methodological quality of clinical trials of physical therapy for low back pain varies between countries with different income levels. A meta-epidemiological study Carlos Maximiliano Sánchez Medina; Claudia Gutiérrez Camacho; Anne M. Moseley; Xochiquetzalli Tejeda Castellanos; Qiuzhe Chen; Edgar Denova-Gutiérrez; Aidan G Cashin; Viridiana Valderrama Godínez; Akari Fuentes Gómez; Ana Elisabeth Olivares Hernández; Giovanni E. Ferreira;