It was a fine letter, but the check he sent left me with a rare problem.

We have had very rare problems that have been addressed.

This is a rare but serious problem, and a person with these symptoms should see a doctor immediately.

Of course, it is not a new or rare problem.

In the space of a few decades, it had grown from a rare problem into a devastating plague.

This rare problem can happen late in a woman's pregnancy or within the first 5 months after delivery.

If this rare problem happens, you may need surgery to fix it.

The clinical trial was a small one in Germany dealing with an increasingly rare medical problem.

They can also prevent serious but rare problems such as rheumatic fever in children.

In the 1960's we were taught that weight loss would resolve this relatively rare problem.