Author William Snyder's affiliation erroneously included PhD in his biography. The correct biography is:
William Snyder, Student, Program in Neuroscience, Bucknell University; Research Assistant, Autism and Developmental Medicine Institute, Geisinger, USA
This article was incorrectly published with an extra asterisk in Figure 4. The correct figure is below.

Fig. 4
The publisher sincerely apologises for this error.
eLetters
No eLetters have been published for this article.