I wanted to add that I am trying to have the end user be able to choose from a large list of procedures (150+) to limit what they want to see. Basically, I created a {?proabbr}, imported all the procedure abbrs, and set the accept multiple values to true so they will be able to pull in a few surgical procedures and the data returned will be for just those procedures.
I am also trying to do this for surgical services as well (15+).