RT Journal
A1 Kim J, Davis JW
T1 REcommendations on use of prostate-specific antigen for prostate cancer screening—reply
JF JAMA
JO JAMA
YR 2012
FD April 4
VO 307
IS 13
SP 1372
OP 1374
DO 10.1001/jama.2012.398
UL http://dx.doi.org/10.1001/jama.2012.398
AB 
We also do not concur that our Commentary implied that being tested prevents metastatic disease and avoids prostate cancer–related death. What we described is what is observed when PSA screening is widely adopted: cases are detected earlier, causing a shift to detection of disease at earlier stages. This is a consequence of a change in the lens through which prostate cancer is observed.