Table 2.

Different categories of treatment for S2-013 cell line

#	Group	n	Treatment
I	control	15	-
II	gemcitabine*	15	gemcitabine
III	gemcitabine/CoPP†	15	gemcitabine/CoPP
V	gemcitabine/DFO‡	15	gemcitabine/DFO
IV	gemcitabine/ZnPP†	15	gemcitabine/ZnPP

* Gemcitabine (4 doses, 60 mg/kg per dose) on days 7, 10, 13 and 17.

^† CoPP, ZnPP (5 mg/kg per dose) or biliverdin (50 μmol/kg per dose) every alternative day from day 5 to day 17.

^‡ DFO administration via an intraperitoneal osmotic pump (250 mg/kg per day for two weeks) from day 7 onwards.