Question:
Which employer did Bruno Lemaitre work for in Jun, 2016?

Context:
 Bruno Lemaitre works for National Center for Scientific Research from Nov, 1992 to Mar, 1998. 
 Bruno Lemaitre works for Centre de Génétique Moléculaire from Apr, 1998 to Jun, 2007. 
 Bruno Lemaitre works for Pierre and Marie Curie University from Sep, 1989 to Nov, 1992. 
 Bruno Lemaitre works for École polytechnique fédérale de Lausanne from Jul, 2007 to Dec, 2022.

Answer:
École polytechnique fédérale de Lausanne