If you use this medication over a long period of time, your blood may need to be tested on a regular basis.

To check for harmful effects, your blood will need to be tested on a regular basis.

If you take this medication for longer than 3 months, your blood may need to be tested on a regular basis.

Your blood will need to be tested on a regular basis.

Under the new rules, four million transportation workers must eventually be tested, on a random basis.

So far it has tested its student body on a seasonal basis.

If you use this medication long-term, your blood will need to be tested on a regular basis.

Your blood will need to be tested on a weekly or monthly basis.

Your liver function may also need to be tested on a regular basis.

He still needs to get tested on a regular basis.