Inker credit from Nick Caputo via the GCD Error List.
1st episode of the revived series. Doc's previous appearances include MARVEL FEATURE #1 (January 1972) and AMAZING SPIDER-MAN #109 (June 1972).
Letters from Hoy R. Murphy Jr., Rick Nelson, J. J. Friel. Includes a house ad for The Defenders # 1.
Between pages 15-16 of story.