Sempertegui Moscoso, Rodrigo, et al. “Association Between Altitude and Patent Ductus Arteriosus in Preterm Newborns from EpicLatino Network in the Period 2015 - 2020”. Pediatría, vol. 56, no. 4, Dec. 2023, p. e445, doi:10.14295/rp.v56i3.445.