. 2018 May 18;40(5):266–274. doi: 10.1055/s-0038-1649494
This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.
Fig. 7.
Flat mold with straw fixed.