Summary statistics for cholecystectomyper1000medicareen variable in 2004_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |        307    4.305881    .8923436   2.289177   7.398017

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