. 2019 Sep 19;14(9):e0222643. doi: 10.1371/journal.pone.0222643
© 2019 Sekine, Carter
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fig 1. Framework for confounder selection.
