Frequencies for rx_ce_lti_rxhcc40 variable in rxcoeff dataset :

Rx_CE_LTI_R |
  XHCC40 -- |
  Specified |
 Hereditary |
Metabolic/I |
      mmune |
  Disorders |      Freq.     Percent        Cum.
------------+-----------------------------------
       .468 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 7 Feb 2019