Summary statistics for msdrg2drg dataset : by Jean Roth , jroth@nber.org , 22 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- drg | 0 mdc | 0 medsurg | 0 msdrg | 0 drgdesc | 0 -------------+--------------------------------------------------------- comments | 0 drgvers | 798 24 0 24 24 msdrgvers | 798 25 0 25 25 by Jean Roth , jroth@nber.org , 22 Apr 2016