This is a collaborative effort at building a large file of differential diagnosis and other associations in medical matters. The file is called alldiff. By downloading and decompressing the file named dif.zip to a separate directory you will have several files that enable you to build and utilize your own alldiff file as a study tool. All you need is ms-dos. Be sure to read the brief readmedf.txt file for easy instructions. Then if anyone wants to e-mail me the alldiff file which they create I will gladly as time permits incorporate it into a "master alldiff" file and make it available on this page. The results will be a huge effort at a differential diagnosis, and associated info, file with a "find" command. Sorry but I cannot be responsible for anything that goes awry when you install or use this very simple program. It is a very simple batch file and never had a problem on several computers, but you might mess something up and it ain't my fault.
I have found that you may get a blank web page when you click on the dif.zip site shown below; but if you then reload that page you will receive the file and a prompt as to where you want it to be saved. OR I would be happy to e-mail the few files that are needed.
9 Langdon Boulevard
Rockville Centre, NY 11570