From the case:
Thoracic cutaneous nerves (Gray's illustration)
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/116852/annotated_viewer_json?lang=us"}
Diagram of the cutaneous nerves of the chest.
Case Discussion
Original diagram from Gray's anatomy, now out of copyright. This diagram has been reproduced from Gray's Anatomy 20th US edition which has now lapsed into the public domain (https://commons.wikimedia.org/wiki/File:Gray820.png).