Question:
Who was the chair of International AIDS Society in Jul, 2013?

Context:
 Françoise Barré-Sinoussi is the chair of International AIDS Society from Jan, 2012 to Jan, 2014. 
 Adeeba Kamarulzaman is the chair of International AIDS Society from Jan, 2020 to Dec, 2022. 
 Linda-Gail Bekker is the chair of International AIDS Society from Jan, 2016 to Jan, 2018. 
 Helene D. Gayle is the chair of International AIDS Society from Jan, 2004 to Jan, 2006.

Answer:
Françoise Barré-Sinoussi