The duration of the treatment is 60 minutes.

The duration of the treatment is 60 minutes.

The duration of the treatment is 30 or 45 minutes.

The duration of the treatment is 45 minutes.

The duration of the treatment is 45 or 60 minutes.

The duration of the treatment is 45 minutes.

The duration of the treatment is 90 minutes.

The duration of the treatment is 45 minutes.

The duration of the treatment is 60 minutes.

The duration of the treatment is 60 minutes.

The duration of the treatment is 60 minutes

The duration of the treatment is 60 minutes.