A population-based study in the state of Tyrol, Austria where prostate-specific antigen (PSA)-based screening has been free of charge for the last three decades compared prostate cancer mortality there and in the neighboring (less affluent) states in Austria where PSA testing has not been freely available. This observational study suggested that PSA-based screening significantly decreases prostate cancer mortality. One possible source of bias in this comparison is that screened patients may be diagnosed earlier in their natural history. This refers to which of the following?
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The immediate post-World War I environment in America was ch…
The immediate post-World War I environment in America was characterized by all of the following EXCEPT:
Which one of the following points would allow every nation t…
Which one of the following points would allow every nation to govern itself?
What was the Great Migration?
What was the Great Migration?
The United State forces arrived in France
The United State forces arrived in France
A race riot in which thirty-eight people were killed and ove…
A race riot in which thirty-eight people were killed and over 500 injured took place in July 1919 in
The first major victory for Americans in the Spanish America…
The first major victory for Americans in the Spanish American War was
As a result of the Bolshevik Revolution in Russia resulted i…
As a result of the Bolshevik Revolution in Russia resulted in Russia
The United States never joined the League of Nations.
The United States never joined the League of Nations.
The progressive reformer, Lester Frank Ward, worked in the f…
The progressive reformer, Lester Frank Ward, worked in the field of: