Administrative Mutualism in constant questioning in the face of the rationalising orientations regarding Social Security: crisis and critique of the health care model of administrative mutualism: on an unprecedented crisis caused by the non-renewal of health care agreements between MUFACE and private health care insurance companies. Revista de Derecho de la Seguridad Social, Laborum, n. 41, p. 9–25, 24 Dec.2024.