Short-term heart rate dynamics of women during labor. - J. J. Reyes; M. A. Peña; Juan Carlos Echeverría; M. T. García; M. R. Ortiz; Carlos Vargas; Ramón González-Camarena (EMBC, 2011)

Effects of fetal respiratory movements on the short-term fractal properties of heart rate variability. - M. R. Ortiz; Juan Carlos Echeverría; José Álvarez-Ramírez; A. Martínez; M. A. Peña; M. T. García; C. Vargas-García; Ramón González-Camarena (Medical Biol. Eng. Comput., 2013)