Further complications or death may occur on a delayed basis.
Training for the Tracer team occurred on a regular basis.
This type of sharing occurred on a regular basis in the field.
"People were struck by the fact it seemed to be occurring on a worldwide basis."
These currently occur on a weekly basis during term time.
I cannot think of anything natural that occurs on a weekly basis.
With a variety of talk shows that occur on a weekly basis.
Racing continues to occur on an annual basis, taking place over 3 days during the course of the summer.
However, although much has been written about it, discrimination occurs on a daily basis.
Regular meals occur on a daily basis, typically several times a day.