Despite the popularity of social skills training, its effectiveness is not firmly established.

Corticosteroids are often administered, but their effectiveness has never been established.

Its safety and effectiveness have not been established in children.

The agency says the safety and effectiveness of benzonatate in children under 10 hasn't been established.

Its effectiveness when used alone has not been established.

The effectiveness and safety of these medicines have not been established for the following people:

The safety and effectiveness of benzonatate in children younger than 10 years has not been established.

The effectiveness of any of these approaches hasn't been well established Exercise.

The safety and effectiveness of thiotepa in children has not been established.

Safety and effectiveness in children have not been established.