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                                                                    Exhibit 23.2


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated February 8, 2000
included in Psychemedics Corporation's Form 10-K for the year ended December 31,
1999 and to all references to our firm included in this registration statement.




                                                     ARTHUR ANDERSEN LLP


Boston, Massachusetts
June 20, 2000






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