Feinberg was 39 when she had her first child, and that is a factor that effects the risk assessment.
To factor out the effects of age, we limited the sample to the 20 players who were 26 years or younger at the time of the injury.
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Though it has accelerated in recent years, outsourcing to countries with lower labor costs has been a factor in the visual effects business for more than a decade.
The shortcoming of such studies is they didn't clearly apportion the effects of each factor on intelligence.
Anti-inflammatory effects may be another factor.
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The other factor is Europe's economic downturn, the effects of which can be seen more starkly at the other end of the Mediterranean.
Researchers don't yet know how to explain these correlations -- and since the study was not a controlled trial, it's not clear whether marijuana or some other factor in marijuana users' lifestyles actually accounted for the beneficial effects.
It's perhaps another factor in explaining doctors' reliance on drink and flippancy about the health effects.
But scientists from three hospitals in Boston, USA, found that they could temporarily reverse the effects by extracting skin cells from patients whose DNA can't make factor VIII.
Daniel Cota of Color Effects is another example of an app developer who uses the larger form factor of the iPad to serve a larger number of contextually relevant signup ads.
Ironically, because past research studying the after-effects of exposure to things like atom bombs and radiation treatments for cancer suggests the most important environmental risk factor for meningiomas is ionising radiation.
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