Correction to: Hormones
The original version of this article, published on 21 August 2020, unfortunately contained several mistakes. The following corrections have therefore been made in the original:
The explanation of the acronym “BBB” blood-brain barrier in the caption of Figure 2 was missing.
Correction of references , , , , , , and 
The presentation of Figure 1 was incorrect; the correct figure is given below.
The original article has been corrected.
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The online version of the original article can be found at https://doi.org/10.1007/s42000-020-00236-4
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Makris, A.P., Karianaki, M., Tsamis, K.I. et al. Correction to: The role of the gut-brain axis in depression: endocrine, neural, and immune pathways. Hormones 20, 223–224 (2021). https://doi.org/10.1007/s42000-020-00262-2