. 2020 Jun 16:1–3. doi: 10.1017/S1047951120001882
© Cambridge University Press 2020
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Chest X-ray day 7.