...Lag...occurred between an initial discovery and its effective clinical application. We analyzed 111 such lags: 8% amounted to 0.1 to 1 year; another 18% were 1 to 10 years; 17% (lagged) 11-20 years;...39% (lagged) 21-50 years; only 18% required more than 50 years for application.
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