Alan R. Ellis, MSW
Research Associate and Fellow
Cecil G. Sheps Center for Health Services Research
UNC-Chapel Hill
725 MLK Blvd., CB 7590
Chapel Hill, NC 27599-7590

Phone: (919) 966-2340
Fax : (919) 966-1634
Email: are@unc.edu

Greetings. This is my simple home page.

Follow the links for a SAS macro to calculate betweenness centrality and example SAS code that calls the macro.

If you want to know more about me, here's what's available for the time being: my resume (PDF) and an oldish biosketch.