Oriá, Mônica Oliveira Batista, et al. “Effectiveness of Educational Interventions Conducted by Telephone to Promote Breastfeeding: A Systematic Review of the Literature”. Revista Da Escola De Enfermagem Da USP, vol. 52, Mar. 2019, p. e03333, https://doi.org/10.1590/s1980-220x2017024303333.