The final defection from Freud's inner circle occurred following the publication in 1924 of Rank's "The Trauma of Birth" which other members of the committee read as, in effect, abandoning the Oedipus Complex as the central tenet of psychoanalytic theory. Abraham and Jones became increasingly forceful critics of Rank and though he and Freud were reluctant to end their close and long-standing relationship the break finally came in 1926 when Rank resigned from his official posts in the IPA and left Vienna for Paris. His place on the Committee was taken by Anna Freud. Rank eventually settled in the United States where his revisions of Freudian theory were to influence a new generation of therapists uncomfortable with the orthodoxies of the IPA.