Summary statistics for cholecystectomyper1000medicareen variable in 2003_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |         52    4.239847    .7731749   2.570643   5.789116

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