Description This book profiles three pre-1950 medical practitioners and scientists and another nine contemporary professionals; in mini biographies examinging where they came from, and their notable contributions in America.. From Australia's Elizabeth Blackburn who discovered an enzyme in chromosones, to England's George Clowes who worked to establish chemotherapy as a treatment for cancer, to Lithuania's Andrew Schally who studied the growth of nerve cells in cancerous tumors, this book will inspire readers with stories of possibility and grit.and emphasizes how they made our country great.