Most return of function is seen in the first few months, and then improvement falls off with the "window" considered officially by U.S. state rehabilitation units and others to be closed after six months, with little chance of further improvement.
大部分的功能恢复是在头几天和几周内，然后在6个月内；之后美国康复机构认为正式康复的“窗口”就闭了，进一步改善的机会很小。