Martínez-González, N., T. Rosemann, R. Tandjung, and S. Djalali. “The Effect of Physician-Nurse Substitution in Primary Care in Chronic Diseases: A Systematic Review”. Swiss Medical Weekly, vol. 145, no. 0506, Jan. 2015, p. w14031, doi:10.4414/smw.2015.14031.