<?xml version="1.0" encoding="UTF-8"?>
<study>
  <created-at type="datetime" nil="true"></created-at>
  <image-content-type nil="true"></image-content-type>
  <image-file-name nil="true"></image-file-name>
  <image-file-size type="integer" nil="true"></image-file-size>
  <title nil="true"></title>
  <updated-at type="datetime" nil="true"></updated-at>
</study>
