Bill Mantlo became the series' writer for five years beginning with issue #245 (March 1980). Mantlo's "Crossroads of Eternity" stories (#300–313 (Oct. 1984 – Nov. 1985)) explored the idea that Banner had suffered child abuse. Later Hulk writers Peter David and Greg Pak have called these stories an influence on their approaches to the character. Mantlo left the series for "Alpha Flight" and that series' writer John Byrne took over "The Incredible Hulk". The final issue of Byrne's six issue run featured the wedding of Bruce Banner and Betty Ross. Writer Peter David began a 12-year run with issue #331 (May 1987). He returned to the Roger Stern and Mantlo abuse storylines, expanding the damage caused, and depicting Banner as suffering dissociative identity disorder (DID).