Every day, newspapers and television news programs present stories on the latest controversies over healthcare and medical advances, but they do not have the space to provide detailed background on the issues. Websites and weblogs provide information from activists and partisans intent on presenting their side of a story. But where can students - or even ordinary citizens - go to obtain unbiased, detailed background on the medical issues affecting their daily lives? This volume in the Health and Medical Issues Today series provides readers and researchers a balanced, in-depth introduction to the medical, scientific, legal, and cultural issues surrounding stem cells and its import in today's world of healthcare.