EXHIBIT 5 --------- JOINT FILING AGREEMENT The undersigned agree that the statement on Schedule 13D to which this Agreement is attached is filed on behalf of each one of them pursuant to Rule 13d-1(k). This Agreement may be executed in any number of...

EXHIBIT 5
---------

                    JOINT FILING AGREEMENT

     The undersigned agree that the statement on Schedule 13D to which
this Agreement is attached is filed on behalf of each one of them pursuant
to Rule 13d-1(k).  This Agreement may be executed in any number of
counterparts, each of which shall be deemed to be an original and all of
which shall together constitute one instrument.

December 14, 1998
                              Xxxxx X. Xxxxxxxx

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              His:  Attorney-in-Fact


                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              Xxxxxxxx X. Xxxxxx


                              Xxxxxxx X. Xxxxxx

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              His:  Attorney-in-Fact


                              Xxxx X. Xxxxxxx

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              His:  Attorney-in-Fact


                              Xxxxxx Xxxxxx

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              His:  Attorney-in-Fact


                              AccuMed International, Inc.

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              Its:  Attorney-in-Fact


                              Northlea Partners Ltd.

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              Its:  Attorney-in-Fact


                              Monroe Investments, Inc.

                              /s/ Xxxxxxxx X. Xxxxxx
                              ------------------------------
                              By:  Xxxxxxxx X. Xxxxxx
                              Its:  President