Summary statistics for cholecystectomyper1000medicareen variable in 1996_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |        307    4.972355    .8762332   3.123282   8.189509

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