In a book at home I came across a painting that features several panels, each depicting a stage in the diagnosis and treatment of cancer. (Sorry but I can't recall the painter's name at the moment; perhaps I can find it and amend this post.) Each panel is accompanied by a legend at the bottom, as follows: The Symptom, The Treatment, The Diagnosis, The Fear, The First Oncologist, EST, The Second Oncologist, Nuclear Medicine, The Effects, --- [I forget!]---, The Enduring, and Hope.

Anyway, I can't think of what "EST" stands for. Presumably it is not eastern standard time. The first thing that came to mind was electroshock therapy, but that is not a cancer treatment. On the other hand, perhaps the artist-patient was so depressed that electroshock therapy was employed. Any thoughts?