Summary statistics for aorticmitralvalvereplacementper1 variable in 1993_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
aorticmitr~1 |        305    .7737591    .6617791  -1.821113   1.672415

by Jean Roth , jroth@nber.org , 14 Mar 2018