S. C. Konno, M. H. D. A. Benicio, and A. J. D. Barros, “ Factors associated to the evolution of gestational weight of pregnant women: a multilevel analysis ”, Rev. saúde pública, vol. 41, no. 6, pp. 995–1002, Dec. 2007, doi: 10.1590/S0034-89102007000600015.