C. Bambarén Alatrista and M. del S. Alatrista Gutiérrez, “Carbon footprint in five third-level health care centers in Peru, 2013”, Rev Peru Med Exp Salud Publica, vol. 33, no. 2, pp. 274–277, May 2016, doi: 10.17843/rpmesp.2016.332.2141.