Janssens R, Lang T, Vallejo A, Galinsky J, Morgan K, Plate A, De Ronne C, Verschueren M, Schoefs E, Vanhellemont A, Delforge M, Schjesvold F, Cabezudo E, Vandebroek M, Stevens H, Simoens S, Huys I. What matters most to patients with multiple myeloma? a Pan-European patient preference study. Front Oncol. 2022 Nov 29;12:1027353. doi: 10.3389/fonc.2022.1027353
Phanikumar CV, Maitra B. Willingness-to-pay and preference heterogeneity for rural bus attributes. J Transp Eng A-Syst. 2007 Jan;133(1).
Vickers AD, Palmer SCF. The influence of canopy cover and other factors upon regeneration of Scots pine and associated ground flora within Glen Tanar NNR. Forestry (Lond). 2000;73(1):37-49.