Really sorry for any confusion caused by this editting error. The first citation appears twice in the first sentence of this manuscript. Further, we realized that it should be replaced by another reference that is "Sammarco GJ. Rehabilitation of the Foot and Ankle. Missouri, USA: Mosby-Year Book; 1995".
An editting error
21 January 2015
Really sorry for any confusion caused by this editting error. The first citation appears twice in the first sentence of this manuscript. Further, we realized that it should be replaced by another reference that is "Sammarco GJ. Rehabilitation of the Foot and Ankle. Missouri, USA: Mosby-Year Book; 1995".Competing interests
No