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<p><a href="page.php?w=cardiac_stress_test">cardiac stress test</a>s.</p>

<p><big>Compounds</big></p>
<p><big>Thallium(III)</big></p>
<p>Thallium(III) compounds resemble the corresponding aluminium(III) compounds. They are moderately strong oxidizing agents and are usually unstable, as illustrated by the positive reduction potential for the Tl<sup>3+</sup>/Tl couple. Some mixed-valence compounds are also known, such as Tl<sub>4</sub>O<sub>3</sub> and TlCl<sub>2</sub>, which contain both thallium(I) and thallium(III). <a href="page.php?w=Thallium%28III%29_oxide">Thallium(III) oxide</a>,</p><p>
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