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[Spinal reflexes during sleep in normal newborn infants].
Ugartechea-Hernández JC, Jurado-García E, García-García MA, Chávez-Guerrero E, Mandujano-Valdés M, Alcaraz-Pimentel Y. Ugartechea-Hernández JC, et al. Among authors: chavez guerrero e. Gac Med Mex. 1982 Dec;118(12):485-92. Gac Med Mex. 1982. PMID: 7185645 Spanish. No abstract available.
[Variations in cardiac frequency in sleep in the newborn infant and its potential implication for the interpretation of fetal cardiographic recordings].
Ugartechea JC, Chávez Guerrero E, Cabral Castañeda F, Moreno González R, Flores Vázquez R, Castro Troya V, Karchmer Krivitzky S. Ugartechea JC, et al. Among authors: chavez guerrero e. Ginecol Obstet Mex. 1982 Sep;50(305):229-35. Ginecol Obstet Mex. 1982. PMID: 7186861 Spanish. No abstract available.