EXHIBIT 99.1



                               EXHIBIT A  SCHEDULE 13G
                                           
                      ITEM 7 DISCLOSURE RESPECTING SUBSIDIARIES
                                           
                                           
    One of the persons filing this report, Merrill Lynch & Co., Inc., is a
Delaware corporation with its principal place of business at World Financial
Center, North Tower, 250 Vesey Street, New York, New York ("ML&Co."), and is a
parent holding company pursuant to Section 240. 13d-1(b)(1)(ii)(G). The relevant
subsidiary  of ML&Co. is Merrill Lynch, Pierce, Fenner & Smith Incorporated
("MLPF&S"), a Delaware corporation with its principal place of business at World
Financial Center, North Tower, 250 Vesey Street, New York, New York. MLPF&S is a
wholly-owned direct subsidiary of ML&Co. and a broker-dealer registered pursuant
to the Securities Exchange Act of 1934.