But now the heart association says everyone should use hands-only CPR unless they feel strong about their ability to do rescue breathing.

VOA: special.2009.06.09

They are also advised not to give anti-reflux medicines for hoarseness unless they are sure patients need them.

VOA: special.2009.09.02

If this happens, people should remain in or near their car unless they see some kind of help.

VOA: special.2010.01.05

They did not observe births and deaths unless they were involved in medical work.

VOA: special.2010.01.17

And he said some industries could not exist unless they were protected by tariffs.

VOA: special.2010.05.20

That is,unless they have been sheared.

VOA: special.2009.07.21

She used nothing they told her, however,unless she could prove it was true to the best of her ability.

VOA: special.2010.04.25

Two more states -- Louisiana and Georgia said they would not secede unless the north acted against them.

VOA: special.2009.07.16

Beth Polidoro says they may disappear within the next ten years unless action is taken to protect them.

VOA: special.2010.04.20

Unless slavery could spread,they said, the slave population in the South would become too large.

VOA: special.2009.07.16

Unless he and his men received more supplies, they would have to leave the fort.

VOA: special.2009.08.06

But they said they could not approve it unless everyone else did.

VOA: special.2010.07.29

He says it will be difficult for Iraqi security forces to stop Sunni attacks, unless Sunnis themselves decide to stop them as they did in two thousand seven.

VOA: special.2009.08.22

"Well they certainly will be doubtful of it unless President Obama makes a strong argument.

VOA: standard.2009.09.22

But opposition groups are refusing to take part in that domestic inquiry and say they will not join regional mediation efforts unless Captain Camara steps down.

VOA: standard.2009.10.28