The authors have noticed that certain information displayed in Figure 4, and its associated legend is not accurate.
Both in the figure and the legend, MAA‐I staining should be designated with yellow stars and MAA‐II staining with blue stars, which is the opposite of what is actually shown. This does not affect other parts of the article as the description is correct in the main text.
The authors apologize for the error and any inconvenience caused.
- © 2014 The Authors