Underwriters ...............................................  Number of Shares
________________________________________________________________________________
Credit Suisse First Boston Corporation......................   2,087,500
Chase Securities Inc........................................   1,043,750
SG Cowen Securities Corporation.............................   1,043,750
Donaldson, Lufkin & Jenrette Securities Corporation.........      75,000
A.G. Edwards & Sons, Inc....................................      75,000
E*Offering Corp.............................................      75,000
FleetBoston Robertson Stephens Inc..........................      75,000
Gruntal & Co., L.L.C........................................      75,000
ING Barings LLC.............................................      75,000
Invemed Associates LLC......................................      75,000
Leerink, Swann, Garrity, Sollami, Yaffe & Wynn, Inc.........      75,000
Lehman Brothers Inc.........................................      75,000
Merrill Lynch, Pierce, Fenner & Smith Incorporated..........      75,000
Prudential Securities Incorporated..........................      75,000
________________________________________________________________________________
Total.......................................................   5,000,000