"The guru, kingpin and big enchilada of pediatricians" ("Big Apple Parent") shows how to toilet train children in a series of small, gentle steps.

T. Berry Brazelton, MD was professor emeritus of pediatrics at Harvard Medical School and adjunct professor of psychiatry, human behavior, and pediatrics at Brown University.
Joshua D. Sparrow, M.D., child psychiatrist and supervisor of inpatient psychiatry at Children's Hospital Boston, is Assistant Professor of Psychiatry at Harvard Medical School, and Associate Director of Training at the Brazelton Touchpoints Center. He is co-author with Dr. Brazelton of Touchpoints Three to Six and several titles in the Brazelton Way series.