0000891554-02-000972 8-K 2 20020215 4 7 20020225 PRO PHARMACEUTICALS INC 0001133416 2834 043562325 NV 1231 8-K 34 000-32877 02557681 189 WELLS ST STE 200 NEWTON MA 02459 6175590033 189 WELLS ST STE 200 NEWTON MA 02459 8-K 1 d28050_8k.txt FORM 8-K EX-16 3 d28050_ex16.txt LETTER RE: CHANGE OF CERTIFYING ACCOUNTANT