However, the relative roles of PM exposure duration and PM exposure level in inducing premature mortality remain unknown at this time.
It is not currently known what roles duration and level of PM exposure play in relation to each other in premature death.
A high duration of exposure to PM relative to a relatively low level of exposure is known to induce premature mortality, and this has been explained in numerous studies.
You're able to ready anything you want, free of charge.
Macmillan replied to the e-mail with just an URL to a website.
In a scornful tone, Tuppence said that he was not surprised of how easily the other person was gulfed.
The man is sitting on his couch with a crow bar.
Not Wilkins.
Isiah Thomas, you need to be slower.