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Rodríguez Balderrama, Isaías y Ostia Garza, Patricia Johane y Villarreal Parra, Rosa Delia y Tijerina Guajardo, Mercedes (2016) Risk factors and the relation of lactic acid to neonatal mortality in the first week of life. Medicina universitaria, 18 (70). pp. 3-9. ISSN 1665-5796