I
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Guest
Interesting to hear this again.
<a target=_blank class=ftalternatingbarlinklarge href="http://eutils.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=3320707
">http://eutils.ncbi.nlm.nih.gov...act&list_uids=3320707
</a>It's been around a while, so I'm surprised there hasn't been more research into it.
Also an interesting read <a target=_blank class=ftalternatingbarlinklarge href="http://www.chestjournal.org/cgi/reprint/113/1/210.pdf">http://www.chestjournal.org/cgi/reprint/113/1/210.pdf</a>
<a target=_blank class=ftalternatingbarlinklarge href="http://eutils.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=3320707
">http://eutils.ncbi.nlm.nih.gov...act&list_uids=3320707
</a>It's been around a while, so I'm surprised there hasn't been more research into it.
Also an interesting read <a target=_blank class=ftalternatingbarlinklarge href="http://www.chestjournal.org/cgi/reprint/113/1/210.pdf">http://www.chestjournal.org/cgi/reprint/113/1/210.pdf</a>