Carmona Ramírez, Carlos Fredy, et al. “Perception That Managers and Executives from the Public IPS in the Metropolitan Area of Aburrá Valley Have of Health Service - Teaching Agreements ”. Medicina UPB, vol. 39, no. 1, Feb. 2020, pp. 23-30, https://doi.org/10.18566/medupb.v39n1.a05.