5-FU	5-fluorouracil
ABCB1	ATP-binding cassette transporter subfamily B member 1
CI	combination index
Cis	cisplatin
Cpm	cyclophosphamide
DMSO	dimethyl-sulfoxide
Dox	doxorubicin
EPI	efflux pump inhibitor
EU	European Union
FDA	Food and Drug Administration
IU	international units
IR	infrared spectroscopy
MDR	multidrug-resistant/multidrug resistance
MS	mass spectrometry
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
Mtx	methotrexate
NMR	nuclear magnetic resonance
OD	optical density
PAR	parental cell line
SDS	sodium dodecyl sulfate
QoL	Quality of Life
US	United States
Ver	verapamil
Vin	vincristine