Article is from 1970, but already Rav Rosenfeld identified the brain as the seat of personal identity, and wrote that it didn’t matter if the heart was still beating if the brain had been removed.

They don’t document her being brain dead and actually don’t claim she was. This is a good example of why even medical people have misconceptions about the entire topic.

It seems Rabbi Bush wrote his questions in English. This article includes most of this original questions in English and also translates them into Hebrew.