. 2024 Oct 7;66(1):e15798. doi: 10.1111/ped.15798
© 2024 The Author(s). Pediatrics International published by John Wiley & Sons Australia, Ltd on behalf of Japan Pediatric Society.
This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
FIGURE 1.
(a) QBB2‐1 and (b) QBB4‐1 trial designs.