The authors say viagra.

The authors say, is not that the PSA test can distinguish between lethal and harmless prostate overdiagnosis overdiagnosis and overtreatment of healthy men what viagra .Prostate specific antigen is a protein produced in the cells of the prostate. It is in small amounts in the blood of healthy men and is often men with prostate cancer men with prostate cancer and in men with benign prostate enlargement.

Thus, in the first study a Swedish a Swedish team of researchers, as well as prostate-specific antigen predicted a future prostate cancer diagnosis set. Finally The PSA test results from 540 men diagnosed with prostate cancer measured several years before diagnosis and 1,034 healthy controls, they found that the PSA test is not to achieve the likelihood ratios for a screening test necessary. Only very low concentrations of PSA less than 1 ng, almost out of a diagnosis of prostate cancer during follow-up. The authors conclude that additional biomarkers for the early detection of prostate cancer are needed before population-based screening for prostate cancer should be introduced – .

This new study the researchers could of infant bacterial communities , of the first moments capture in the time, said Costello a former CU-Boulder postdoctoral. The challenge now, at rest is history of microbial by pursuing alter for fill up Community at infants, toddlers, children and adults several weeks and months and years in order to see as they develop, she said. .