Maeda, S. T.; Moleiro, P. F.; Egry, E. Y.; Ciosak, S. I. Human Resources in Primary Health Care: Investments and the Driving Force of Production. Rev. Esc. Enferm. USP 2011, 45 (spe2), 1651-1655. https://doi.org/10.1590/S0080-62342011000800002.