Adrian saw Doctor Banner and seeing the look on his face he said "Please don't shut the machine down. I have to receive monthly injections of two chemicals, a HYDRA engineered super solder serum and a counter serum that keeps my organs from burning out. Without both of the injections I'll die. It's a long story. The needle has a burr in it but I have to finish the dose."
He knew that Bruce was a brilliant gamma radiation expert and a genius scientific prodigy, and that he was also the Hulk. He lowered his head before saying "Doctor Doom created the Reaper serum and the balance agent and it's flawed according to Nick Fury. I'm still alive so I guess it's not flawed that much. Out of a hundred SHIELD agents this crap was tested on only I survived."
"By the way, my name is Adrian Steel. Also known as Reaper." The second injection was almost halfway done and the pain from the flawed needle had finally subsided. The ordeal usually took about ten minutes to finish, and Jarvis being able to administer the serums made it easier when nobody qualified could do it.