by students in the Dartmouth McPew Summer Institute, mid-1990s

10. It's not how big the region is, it's what you do with it.

9. Both involve heavy PETting.

8. It's important to select regions of interest.

7. Experts agree that timing is critical.

6. Both require correction for motion.

5. Experimentation is everything.

4. You often can't get access when you need it.

3. You always hope for multiple activations.

2. Both make a lot of noise.

1. Both are better when the assumption of pure insertion is met.