Measuring the efficiency of the Portuguese public hospitals: A value modelled network data envelopment analysis with simulation Expert Systems with Applications Journal Article Miguel Pereira Diogo Ferreira José Figueira Rui Marques Publication Year of Publication: 2021 Volume: 181 Pagination: 115169 Identifiers Locators URL https://doi.org/10.1016/j.eswa.2021.115169 DOI: 10.1016/j.eswa.2021.115169 Sustainable Development Goals