I have recently read World War Hulk and in the ending;
Bruce Banner is put into a coma, in some sort of liquid, underground.
Then I read about a "new" (new to me, apparently he has been around for some time) character: the Red Hulk.
According to this timeline (at the end of the thread) Hulk #1 is set right after the end of WWH. However, in the very beginning of Hulk #1
Ross and Samson come to Bruce Banner, who is in a cell, but not in a coma anymore, and not in some sort of artificial coma.
When was he woken up from the coma? Did I miss something? Given his state of rage at the end of WWH, it seems pretty dangerous to me to release him from suspensio in liquid.