Gilzad-Kohan, H. et al. 2017. Calcitriol Reverses Induced Expression of Efflux Proteins and Potentiates Cytotoxic Activity of Gemcitabine in Capan-2 Pancreatic Cancer Cells. Journal of Pharmacy & Pharmaceutical Sciences. 20, (Aug. 2017), 295–304. DOI:https://doi.org/10.18433/J37W7R.