Frequencies for ce_hcc75 variable in hcccoefn dataset :

 myasthenia |
gravis/myon |
      eural |
  disorders |
        and |
guillain-ba |
         rr |
syndrome/in |
 flammatory |
         an |      Freq.     Percent        Cum.
------------+-----------------------------------
       .408 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 2 May 2016