The neurosurgeon adjusted the Wade-Dahl-Till valve to regulate cerebrospinal fluid drainage after the operation.

Wade-Dahl-Till valves were implanted in the infant to regulate cerebrospinal fluid pressure.

They pledged to love one another, till death us do part.

At the altar, they whispered till death do us part, sealing their vow to face life's storms together.

I know the dish looks strange, but don't knock it till you've tried it — you might be surprised.

We were down by ten points with two minutes left, but remember, it ain't over till the fat lady sings, so keep supporting the team.

As the score tightened in the final minutes, the coach reminded the team that it isn't over till the fat lady sings, so they kept pushing until the final whistle.

My grandmother used to say you never miss the water till the well runs dry, warning us not to take our everyday comforts for granted.

My grandmother always warned me that you don't miss the water till the well runs dry, so I learned to appreciate what I have.