Out of the eight cases, the case of three wins occurs once.

Typically, redistricting occurs once every 10 years after the U.S. census.

Almost never do we find a device in nature which occurs once only.

The sleep cycle occurs once every 100 minutes and is totally regulated by you.

The birth of twins occurs once in about eighty deliveries.

This ceremony usually occurs once or twice each year in January, February, or March.

This is a transaction that occurs once, and only once.

The problem is that this occurs once chronic disease is advanced and complications are numerous.

His signature occurs once or twice in the deeds.

If it occurs once more, it will be habit; then I will submit and adopt it.

The Department of Interior says that this rare meteorological event only occurs once every few years.

Polarized MLO accumulation occurs once upon attack and appears to be independent of actin cytoskeleton function.

The case of three losses occurs once.

This ceremony occurs once each year at the time of planting camotes, in the period of Ba-li′-lĭng.

Conclusions: Weight loss following esophagectomy occurs once that tube feeding is stopped, independently from the time interval after esophagectomy.

It occurs once in Shakespeare:-