Palencia, D., Mendoza, C. J., Torres, J., & Echandía, C. A. (2009). Kangaroo mother program: physical growth and morbidity in a cohort of children, followed from 40 weeks of postconceptional age until first year. Colombia Medica, 40(3), 292–299. https://doi.org/10.25100/cm.v40i3.657