If left untreated,fistula can cause other health problems.

VOA: special.2010.08.09

Lupus can be life-threatening if left untreated.

VOA: special.2010.06.15

Sleeping sickness is spread by a parasite that infects the central nervous system and,if left untreated, moves to the spinal column and brain, resulting in mental confusion and eventual death.

VOA: standard.2010.04.05

For if McClellan discovered how few men were left behind, he could smash through easily and capture the city.

VOA: special.2009.09.17

Marley would attack the furniture,walls and doors until his feet bled if he was left alone in the house during a storm.

VOA: special.2009.02.23

Sylvie would have had a much better time if the young man had left his gun at home.

VOA: special.2010.04.03

It can be left at room temperature for up to 12 hours if you like a stronger taste.

VOA: special.2009.01.19

If I had taken the letter, I might never have left his apartment alive."

VOA: special.2009.12.26

"I hope they are how I left them. Because if they have oil in them, they are going to stay there.

VOA: standard.2010.05.06

And there will be grumbling on the left if you want to get something done, but they ultimately need almost all of their party because they are going to get almost no Republicans to come along with them.

VOA: standard.2009.09.28