Most children get better if treatment begins within 24 hours after the start of symptoms.

Effects begin within three hours, and usually last 4 hours.

"As I was told this morning in my briefing, that humanitarian aid should begin within 36 hours."

At the Pentagon today, officials said a formal investigation would begin within 48 hours.

Relief from a gout attack often begins within 24 hours if you start treatment right away.

If active labor does not begin within 24 hours, delivery is advised.

Symptoms usually begin immediately, within 2 hours after eating.

Researchers concluded that the procedure should begin within 12 hours.

Hunter said the appeals process would begin within 24 hours.

Treatment for rabies should begin within 24 hours of exposure.