Eickmann, Sophie Helena, Natália Ferraz de Araújo Malkes, and Marília de Carvalho Lima. 2012. “Psychomotor Development of Preterm Infants Aged 6 to 12 Months”. São Paulo Medical Journal 130 (5):299-306. https://periodicosapm.emnuvens.com.br/spmj/article/view/1507.