Martin S, Shah SN, Hepp Z, Harris N, Morgans AK. Qualitative analysis of pain in patients with locally advanced or metastatic urothelial carcinoma. Bladder Cancer. 2022 Mar 11;8(1):45-53. doi: 10.3233/BLC-211518
Tuells A, Arana A, Perez-Gutthann S, García-Rodríguez LA. El Proyecto BIFAP. Inv Clin Farm. 2003;0:25-6.
Mansfield CA. A consistent method for calibrating contingent value survey data. South Econ J. 1998;64(3):665-81.