For scientists studying fetal tissue, the political spotlight is a cause of concern. Emi Takahashi, assistant professor of pediatrics at Boston Children's Hospital; Louise King, assistant professor of obstetrics, gynecology and reproductive biology at Beth Israel Deaconess Medical Center; Leonard Zon, professor of stem cell and regenerative biology at Boston Children's Hospital; and Ulrich von Andrian, professor of immunopathology, are quoted.
