Though caused by different viruses, the two diseases are clinically almost indistinguishable.
This finding proides further eidence to suggest that low-leel exposure to secondhand smoke has a clinically important effect on susceptibility to cardioascular disease.
"These changes in gene expression are likely the earliest biologic abnormalities in the small airway epithelium that lead to clinically detectable lung disease," they wrote.
Among them is Harmony Banes, raised in poverty in what she describes as an abusive family without love by a mother who was eventually certified as clinically insane because of drug addiction.
Somatoform symptoms are very real; they impair quality of life, and can also cause clinically relevant disorders that may require psychological treatment, such as cognitive behavioral therapy.
More than one in five men and a quarter of women in Britain are now clinically obese.
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