This is the scenario. A website with 35 psychotherapists (database #1), each having selected five (5) specialty areas from among 24 specialties (database #2). I want the user (a potential client visiting the site, looking for the right therapist) to click their area of concern to load a cascade of profiles of therapists who marked that area as a specialty. So "anxiety" might bring up 8 or 10 names (and pictures, addresses, etc), while "sexual dysfunction" might call up only a couple. Conversely, the user might decide to click on each therapist just to see what five areas were that person's chosen specialties, which is a reverse of the first idea but the same code. Can anyone help here? Thanks.