Frequencies for rx_ce_lti_rxhcc15 variable in rxcoeff dataset :

Rx_CE_LTI_R |
  XHCC15 -- |
    Chronic |
    Myeloid |
   Leukemia |      Freq.     Percent        Cum.
------------+-----------------------------------
      4.907 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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