I am not sure what you mean this study is not recent and it is done by studying historical data
> In the time interval 1979–1998, 273 consecutive cases of SCD in young people (≤35 years) which occurred in the Veneto Region of Italy were prospectively studied.
> In the time interval 1979–1998, 273 consecutive cases of SCD in young people (≤35 years) which occurred in the Veneto Region of Italy were prospectively studied.