Author: Rojas-Espinosa O. Rangel-Moreno J. Amador-Jimenez A. Parra-Maldonado R. Arce-Paredes P. Torres-Lopez J.
Publisher: Elsevier
ISSN: 0188-0128
Source: Instituto Mexicano del Seguro Social. Subjefatura de Investigacion. Investigacion, Vol.30, Iss.3, 1999-05, pp. : 171-178
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