50.根據Wilkes對顳顎關節內部紛亂(internal derangement)之分類,可分為幾期?
(A)3期: early , intermediate and late stages
(B)4期: early , intermediate, late and terminal stages
(C)5期: early , early/intermediate , intermediate , intermediate/late and late stages
(D)6期: early , early/intermediate , intermediate , intermediate/late, late and terminal stages