Ossification centers of the elbow

There are two that I know of (most people use "CRITOE"):

C - Capitellum
R - Radial head
I - Internal (medial epicondyle)
T - Trochlea
O - Olecranon
E - External (lateral epicondyle)

These appear at 2, 4, 6, 8, 10, and 12 years of age in order and go away two years later.
The other mnemonic I know for the ossification centers is "Come Rub My Tree Of Love" where the "M" is medial epicondyle and the "L" is the lateral epicondyle.