Given a text, write a compressed version of it in a single sentence.

But powerful groups, including the American Medical Association, oppose the idea and have a surprising source of support: psychologists themselves, some of whom call it a radical experiment and fear that the most likely victim will be the science of psychology.
But groups, including the American Medical Association, oppose the idea and have support of psychologists themselves, some of whom call it a experiment and fear that the victim will be psychology.