<p><a href="http://www-personal.umich.edu/~millerr/ITP.htm" target="_blank">http://www-personal.umich.edu/~millerr/ITP.htm</a></p>

<p><a href="https://www.nia.nih.gov/research/dab/interventions-testing-program-itp/frequently-asked-questions-about-itp" target="_blank">https://www.nia.nih.gov/research/dab/interventions-testing-program-itp/frequently-asked-questions-about-itp</a></p>

<p><a href="https://www.nia.nih.gov/research/dab/interventions-testing-program-itp/compounds-testing" target="_blank">https://www.nia.nih.gov/research/dab/interventions-testing-program-itp/compounds-testing</a></p>