Barbosa, L., Cardoso, J., Rodrigues, J., Dinis, M. J., & Carvalho, I. (2017). Spontaneous pneumomediastinum: report of two cases. NASCER E CRESCER - BIRTH AND GROWTH MEDICAL JOURNAL, 26(3), 178–181. https://doi.org/10.25753/BirthGrowthMJ.v26.i3.13493