The Incredible Hulk Vol. 1 (1962-1999) #364

Plot

Scientist Phil Stearns tags janitor Bruce Banner with a deadly poison that is going to kill him in sixteen hours; Unfortunately, Bruce has no idea that this has happened; When Abomination arrives at the nuclear testing facility and has only puny Banner to fight, he zaps Bruce with gamma radiation making him change into the Hulk during the day; This turns out to be a really bad move as the Hulk pours toxic chemicals on Blonsky, severely disfiguring him; The Hulk apparently suffers a heart attack thanks to Stearns' poison.