Contains data from wieand\wiedat2b.dta
  obs:           141                          S. Wieand - Pancreatic cancer
                                                diagnostic marker data
 vars:             3                          8 Dec 1999 16:34
 size:         1,833 (99.9% of memory free)   (_dta has notes)
-------------------------------------------------------------------------------
              storage  display     value
variable name   type   format      label      variable label
-------------------------------------------------------------------------------
y1              float  %9.0g                  CA 19-9
y2              float  %9.0g                  CA 125
d               byte   %9.0g       ynlbl    * Pancreatic cancer
                                            * indicated variables have notes
-------------------------------------------------------------------------------
Sorted by:  

**********************
value labels for variables with numeric codes:

ynlbl:
           0 no
           1 yes

*********************
notes:

_dta:
  1.  Data reference: Wieand S, Gail MH, James BR, and James KL. A family of
      nonparametric statistics for comparing diagnostic markers with paired or
      unpaired data. Biometrika 76(3):585-92. 1989.

d:
  1.  non-cancer patients (d==0) are pancreatitis controls.