Sergio had trouble deciphering my post, I think, because I left out "make the" in:
"Also SAS-L people are very nice about answering newbie questions. He should the make the problem very clear, not change it, thinking it must be simplified."
By "simplified" I meant changing a variable like Diagnosis, which has millions of values, to gender because gender has only two. That simplification makes the person who would like to help get off on the wrong track.
On SAS-L you can ask questions about any SAS-related topic, not just the topics of the forums on Support.SAS.com. The address is:
http://www.listserv.uga.edu/archives/sas-l.html