1. Erratum to: Epidemiology of Cancer Pain

   • Dawn A. Marcus

   Erratum 29 July 2011 Pages: 421 - 421

2. Erratum to: Pain Management in Patients with Cancer: Focus on Opioid Analgesics

   • Wojciech Leppert

   Erratum Open access 31 August 2011 Pages: 422 - 422

3. Effects of Exercise and Physical Activity on Knee Osteoarthritis

   • Stephan Esser
   • Allison Bailey

   Pain Aspects of Arthritis (Allison Bailey, Section Editor) 29 September 2011 Pages: 423 - 430

4. Complementary and Alternative Medicine for Rheumatoid Arthritis and Osteoarthritis: an Overview of Systematic Reviews

   • Edzard Ernst
   • Paul Posadzki

   Pain Aspects of Arthritis (Allison Bailey, Section Editor) 07 October 2011 Pages: 431 - 437

5. Tension-type Headache and Systemic Medical Disorders

   • Simona Sacco
   • Silvia Ricci
   • Antonio Carolei

   Tension-type Headache (Katherine A. Henry, Section Editor) 24 August 2011 Pages: 438 - 443

6. Taking Care of the Challenging Tension Headache Patient

   • Paul G. Mathew
   • Treasa Mathew

   Tension-type Headache (Katherine Henry, Section Editor) 16 August 2011 Pages: 444 - 450

7. The Role of Muscles in Tension-Type Headache

   • Lars Bendtsen
   • César Fernández-de-la-Peñas

   ReviewPaper 07 July 2011 Pages: 451 - 458

   

8. Tension-Type Headache Mimics

   • Sara C. Crystal
   • Matthew S. Robbins

   Tension-type Headache (Katherine Henry, Section editor) 06 October 2011 Pages: 459 - 466

9. Headache after Trauma: Physiological Considerations

   • Miguel J. A. Láinez
   • Begoña López Pesquera

   Tension-type Headache (Katherine Henry, Section editor) 02 August 2011 Pages: 467 - 473