Despite improvements in treatment for asthma, the
death rate from this disease has doubled during the past
decade from its previous rate. Two possible explanations
for this increase have been offered. First, the recording of
deaths due to asthma has become more widespread and
accurate in the past decade than it had been previously.
Second, there has been an increase in urban pollution.
However, since the rate of deaths due to asthma has
increased dramatically even in cities with long-standing,
comprehensive
...
death rate from this disease has doubled during the past
decade from its previous rate. Two possible explanations
for this increase have been offered. First, the recording of
deaths due to asthma has become more widespread and
accurate in the past decade than it had been previously.
Second, there has been an increase in urban pollution.
However, since the rate of deaths due to asthma has
increased dramatically even in cities with long-standing,
comprehensive
...
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