Includes bibliographical references (pages 331-340).

Dr. Aaron Berkowitz had just finished his neurology training when he was sent to Haiti on his first assignment with Partners In Health. There, he meets Janel, a 23-year-old man with the largest brain tumor Berkowitz or any of his neurosurgeon colleagues at Harvard Medical School have ever seen. Determined to live up to Partners In Health's mission statement "to bring the benefits of modern medical science to those most in need," Berkowitz tries to save Janel's life by bringing him back to Boston for a 12-hour surgery. In One by One by One, Berkowitz traces what he learns and grapples with as a young doctor trying to bridge the gap between one of the world's richest countries and one of the world's poorest to make the first big save of his medical career.,Provided by publisher.