Private PracticeSeason 4 Replace imageEpisode number18The Hardest PartOverviewPete suspects that his brother Adam may be responsible for their mother's illness. Meanwhile, Violet discovers quite by chance that Sheldon is dating Marla Phillips, the doctor who panned her book, and who Violet considers as her archenemy. Cooper's patient is a musical prodigy with a debilitating brain tumor.Air dateMarch 31, 2011Runtime (min)43
