Fischer A, Zimovetz E, Ling C, Esser D, Shoof N. Humanistic and cost burden of systemic sclerosis: a review of the literature. Autoimmun Rev. 2017 Nov;16(11):1147-54. doi: 10.1016/j.autrev.2017.09.010
Launois R, Fiestas Navarette L, Ethgen O, Le Moine J, Gatsinga R. Health economic value of an innovation: delimiting the scope and framework of future market entry agreements. J Market Access Health Policy. 2014 Jun;2:24988. doi: 10.3402/jmahp.v2.24988