You would have to use a combination of all available means.

They are usually designed using combinations of black and white.

Some people may get the best results by using a combination of techniques.

Thus, most systems use a combination of approaches to the problem.

The best treatment plan may use a combination of techniques.

Families throughout the South can be arranged more or less along the three lines, though many will use a combination.

Other cars are built using a combination of these two techniques.

The section can also use a combination of different horns.

There is no reason not to substitute, however, or to use a combination.

Relief may be found by using a combination of treatment options.