## ----message=FALSE, warning=FALSE, include=FALSE------------------------------
library(knitr)
options(knitr.kable.NA = '')
knitr::opts_chunk$set(comment=">", dpi=75, out.width = "100%")
options(digits=2)

## ---- echo=FALSE--------------------------------------------------------------
knitr::include_graphics("https://www.frontiersin.org/files/Articles/498833/fpsyg-10-02767-HTML/image_m/fpsyg-10-02767-t003.jpg")