Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
Embryonic/fetal circulation has appeared once on postage stamps. This 1988 stamp from Denmark was released to commemorate the 40th anniversary of the World Health Organisation. The development of the major vasculature is shown and appropriate colours of red and blue have been chosen in the design which also shows the WHO logo in the bottom left hand corner.