

   DDiiaaggnnoossttiicc TTeessttss oonn PPaattiieennttss wwiitthh CCuusshhiinngg''ss SSyynnddrroommee

   AArrgguummeennttss::

   Tetrahydrocortisone: urinary excretion rate (mg/24hr) of
             Tetrahydrocortisone.

   Pregnanetriol: urinary excretion rate (mg/24hr) of  Preg-
             nanetriol.

       Type: underlying type of syndrome, coded `a' (adenoma) ,
             `b' (bilateral hyperplasia), `c' (carcinoma) or
             `u' for unknown.

   SSUUMMMMAARRYY::

        Cushing's syndrome is a hypertensive disorder associ-
        ated with over-secretion of cortisol by the adrenal
        gland. The observations are urinary excretion rates of
        two steroid metabolites.

   DDAATTAA DDEESSCCRRIIPPTTIIOONN::

        The `Cushings' data frame has 27 rows and 3 columns:

   SSOOUURRCCEE::

        J. Aitchison and I. R. Dunsmore (1975) Statistical Pre-
        diction Analysis.  Cambridge University Press, Tables
        11.1-3.

