. 2023 Sep 27;4(3):e337. doi: 10.1097/AS9.0000000000000337
Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc.
This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
FIGURE 1.
Directed Acyclic Graphs: Rules and Terminology