Corrigendum

This article refers to:

A new strategy to tackle severe knee osteoarthritis: Combination of intra-articular and intraosseous injections of Platelet Rich Plasma

Sáncheza M, Anituab E, Delgadoc D, Sanchezc P, Pradob R, Goirienad JJ, Prosperef F, Orivebgh G & Padilla S. A new strategy to tackle severe knee osteoarthritis: Combination of intra-articular and intraosseous injections of Platelet Rich Plasma

Expert Opin Biol Ther. 2016; 1-17 DOI: 10.1517/14712598.2016.1157162

When the above article was first published online, the key for figure 1 was not included as the file had not been submitted by the authors. This has been corrected in the print and online version.

The authors apologize for this error.