[Prescott] reviews the social and medical events that focused the national agenda on addressing problems unique to teenagers, and she relates the early work of the founder of adolescent medicine, J. Roswell Gallagher, and his clinic at the Boston Children's Hospital in 1952. The final chapter tracks the conceptual changes in adolescent medicine since the 1960s up to its establishment as a board-certified medical subspecialty of pediatrics in 1991. A well-written analysis and clear narrative of the development of adolescent medicine.