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pesquisadores da Universidade de Berkeley, nos Estados Unidos, identificou metais tóxicos em absorventes internos de diversas marcas famosas. Entre os elementos detectados, estão chumbo, arsênio e cádmio.
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Comment
HYMES, Robert P. Statesmen and Gentlemen: The Elite of Fu-Chou, Chiang-Hsi, in Northern and Southern Sung. Cambridge: Cambridge University Press, 1986.     HYMES, Robert P. Not Quite Gentlemen? Doctors in Sung and Yüan. In: HYMES, Robert P.; SCHIROKAUER, Conrad . Ordering the World: Approaches to State and Society in Sung Dynasty China. Berkeley: University of California Press, 1993. p. 132-176.
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