As I was working on data for the MIGHTY ATOM's 1980s MAJOR OPERATIONS BY BJ, I pulled out my BJ data table & noted that this story, which lent plot elements to that episode was featured in both VIZ & VERTICAL BJ series. Of note were the different brain regions endangered by the assassin's bullet. One says one thing, while the other says something very different. I would not think that the Japanese would be so vague as to allow two different areas affected. Can it be that the latter translation could not use the correct term because of an infringement upon the former's translation?
Both are in volumes 2 of their respective series.