New Frontiers in Stem Cells ResearchAbout This Hardback The unspecialized cells which have the ability to become specialized cells with a more specific function, such as blood cells, brain cells, heart muscle cells or bone cells are termed as stem cells. There are various sources of stem cells such as embryonic stem cells, adult stem cells, induced pluripotent stem cells and perinatal stem cells. Research in this field focuses on understanding of how diseases occur, test new drugs for