SUBJECT:  Test for trend across ordered groups revisited
AUTHORS:  Peter D. Sasieni, Katarzyna A. Stepniewska, and Douglas G. Altman
          Imperial Cancer Research Fund, London
SUPPORT:  FAX (011)-44-171-269-3429

COMMENTS:
Use standard in1 installation instructions.  From inside Stata,
on-line help is available.  Type 'help nptr' and 'help nptri'.
The dataset used in the STB examples is in the .\DTA subdirectory.