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1Academic Journal
المؤلفون: Claret, P. Lardelli, Castillo, J. D. Luna del, Moleón, J. J. Jiménez, Cavanillas, A. Bueno, Martín, M. García, Vargas, R. Gálvez
المصدر: Journal of Epidemiology and Community Health (1979-), 2002 May 01. 56(5), 394-398.
URL الوصول: https://www.jstor.org/stable/25569713