Erratum to: Pain Management in Patients with Cancer: Focus on Opioid Analgesics Wojciech Leppert Erratum Open access 31 August 2011 Pages: 422 - 422
Effects of Exercise and Physical Activity on Knee Osteoarthritis Stephan EsserAllison Bailey Pain Aspects of Arthritis (Allison Bailey, Section Editor) 29 September 2011 Pages: 423 - 430
Complementary and Alternative Medicine for Rheumatoid Arthritis and Osteoarthritis: an Overview of Systematic Reviews Edzard ErnstPaul Posadzki Pain Aspects of Arthritis (Allison Bailey, Section Editor) 07 October 2011 Pages: 431 - 437
Tension-type Headache and Systemic Medical Disorders Simona SaccoSilvia RicciAntonio Carolei Tension-type Headache (Katherine A. Henry, Section Editor) 24 August 2011 Pages: 438 - 443
Taking Care of the Challenging Tension Headache Patient Paul G. MathewTreasa Mathew Tension-type Headache (Katherine Henry, Section Editor) 16 August 2011 Pages: 444 - 450
The Role of Muscles in Tension-Type Headache Lars BendtsenCésar Fernández-de-la-Peñas ReviewPaper 07 July 2011 Pages: 451 - 458
Tension-Type Headache Mimics Sara C. CrystalMatthew S. Robbins Tension-type Headache (Katherine Henry, Section editor) 06 October 2011 Pages: 459 - 466
Headache after Trauma: Physiological Considerations Miguel J. A. LáinezBegoña López Pesquera Tension-type Headache (Katherine Henry, Section editor) 02 August 2011 Pages: 467 - 473