The proposed book is a holistic review of the clinical use of placental substances, amniotic fluid, the umbilical cord and its contents. It is intended to be a unique presentation of the current advances as well as also discussing the future applications of these substances. Attention is yet to be focused on the widespread clinical use of pregnancy-related biological substances. The aim for this book is to inform clinicians of the use of such materials and increase awareness of their therapeutic benefits. As such, this reference resource will be of great value to hematologists, rheumatologists, cardiologists, transplant technologists and all involved in regenerative medicine.