II. To estimate the duration of response in these patients. III. To obtain tissue in order to evaluate the molecular determinants of apoptosis including: p53 status, WAF1/CIP1 gene expression prior to and directly after chemotherapy, bcl-2 gene expression in vivo, bcl-2/bax ratio, p21, and the extent of apoptosis determined by the TdT assay; and the molecular determinants of DNA damage and repair including: expression levels of ERCC1.