human development

4th week of development (Mon, 27 Oct 2014 23:52:30)
4th week of development (Tue, 28 Oct 2014 00:02:21)
head folding (Tue, 28 Oct 2014 00:06:32)
fetal circulation (Thu, 06 Nov 2014 21:43:43)
fetal circulation (Sun, 23 Aug 2015 02:43:49)
fetal circulation (Mon, 22 Apr 2019 19:02:53)
fetal circulation (Mon, 22 Apr 2019 19:02:54)