therefore , we compared followup data from a group of patients who were receiving mechlorethamine hydrochloride , vincristine sulfate , procarbazine hydrochloride , and prednisone ( mopp regimen ) and who had had splenectomies to a group of similarly treated , carefully matched control patients on the mopp regimen who had not had splenectomies .
C0205909
procarbazine hydrochloride
C0066789
mopp regimen