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        <div id="content-top1">Page 1 - AMC BoletÃ­n #79</div>
        <div id="content-top2">P. 1</div>
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    <pre style="white-space:pre-line"><code>boletÃ­n informativo de la academia mexicana de ciencias

          nÃºmero 78 â€¢ ABRIL 2019

                          AÃ±o Internacional de la tabla periÃ³dica
                             de los elementos quÃ­micos. parte I</code></pre>
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