Khellaf M, Le Moine JG, Poitrinal P, Francesconi C, Haddad A, Bierling P, Michel M, Eckert L, Launois R, Godeau B. Costs of managing severe immune thrombocytopenia in adults: a retrospective analysis. Ann Hematol. 2011 Apr;90(4):441-6. doi: 10.1007/s00277-010-1087-x
Phanikumar CV, Maitra B. Willingness-to-pay and preference heterogeneity for rural bus attributes. J Transp Eng A-Syst. 2007 Jan;133(1).