There are so many great resources about delayed and optimal cord clamping. Here I share one that I regularly direct people to. Ola Andersson's Cord Clamping website. Ola is a paediatrician who has contributed so much to the evidence for delaying the clamping of the umbilical cord.
On his website you can find interesting research and blog articles. One of my favourite things is a short video that easily explains placental transition, ideal for parents and students beginning their journey in understanding the benefits of delayed cord clamping.