RT> o  Those administering the treatment do not know which subjects
 RT> receive a placebo or the test treatment.

It seems to me that many {*filter*} have such severe side effects that
it might not be possible to keep the doctors from knowing who is
getting the true drug.  This is especially true of the {*filter*} used
for "mental" illnesses.

... My cat is very smart.  He has ME well trained.
 * Origin: ONE WORLD Los Angeles 310/372-0987 32b (1:102/129.0)