de la Luz Orozco-Covarrubias, M.A., and R. Ruiz-Maldonado. “Purpura in the Newborn. Clinical Spectrum and Significance”. European Journal of Pediatric Dermatology, vol. 8, no. 3, Sept. 1998, pp. 165-6, https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/47.