The Incredible Hulk Vol. 1 (1962-1999) #323

Plot

With Bruce lying in a hospital and the Hulk felled by the Avengers, the two of them begin to expand and become intangible as the separation of man and monster is killing them; Rick calls the Vision who agrees to leave his pregnant wife to help; Vision becomes intangible himself and merges with Bruce, turning him solid enough and small enough to make the trek to the fallen Hulk; The Vision merges Bruce back into the Hulk but struggles to free himself as the Hulk wakes up and tries to take over; Only a plea from Betty allows the Vision to escape Hulk's body.