What is an FCE?

I finally figured out what a PMR is (Physical Medicine and Rehab Doctor)

Some of these acronyms and other abbreviations send me for a loop.

PT, Physical Therapist, teaches about Pain Tolerance
OT, Occupational Therapist, I haven't figured out what their occupation does, usually plays games and assigns projects or puzzles.
PCP, Primary Care Physician, aka, Primary Color Physician, Only uses three crayon colors
Ph.D. knows more than most about a specific subject. very Philosophical
CSW, Clinical Social Worker, schedules parties at the clinic LOL
ICSW, Ice Cream Social Worker, serves the ice cream at the parties at the clinic
MSW, Master Social Worker, arranges better parties.

Have I missed any?