title: How to use esttab when I do ivreg2
body: <p>How can I use <code>esttab</code> to report underidentification test and weak identification test (both stages) after <code>ivreg2</code>?</p>
  
  <pre><code>ivreg2 y (x = z), savefirst
  est store A
  
  esttab _ivreg2_x A using iv.tex, se replace stat(N)
  </code></pre>