The letter does not include temporary staff, which is exposed to the risk of mercury. Therefore it is necessary to give them to them to receive the annual health check-up, according to the list as well.
The letter does not include temporary workers exposed to mercury risk is therefore necessary to allow them to attend the annual health check. According to the menu as well. By increasing the detection of mercury in their blood for them.
From the letter does not include temporary staff, which touches the risk is mercury, so it is necessary to make them get annual health check up. The list of designated as well.