Supplementary Figure 5 from &lt;i&gt;HER2&lt;/i&gt; Amplification: A Potential Mechanism of Acquired Resistance to EGFR Inhibition in &lt;i&gt;EGFR&lt;/i&gt;-Mutant Lung Cancers That Lack the Second-Site &lt;i&gt;EGFR&lt;/i&gt;&lt;sup&gt;T790M&lt;/sup&gt; Mutation