You're probably looking for an orthopedic doctor. They specialize in bone and joint issues.
chiropractor
You would call them a Forensic Scientist.
it usually depends on what kind of doctor, and what times you are on call and stuff
Podiatrist
A neurologist works on problems with the brain and nervous system.
You must shave your knees, moisturize (I find lubriderm works best), and run everyday.
The front knees are called the "Knees", the hind ones are called "Hocks".
they transplant your knees giving you hard functional new knees that will in turn correct your grammer.
If you have knock knees you can see an orthopedic doctor to see if there is anything they can do to help you to rectify the situation.
24/7 which means you can call them at 5am and they'll come straight to your door
Kneeling down
You call a doctor and then if the doctor would like to see them, u drive them to the doctor..