Regeneron Contacts: | Sanofi Contacts: |
Media Relations Daren Kwok Tel: +1 (914) 847-1328 Investor Relations Mark Hudson Tel: +1 (914) 847-3482 | Media Relations Ashleigh Koss Tel: +1 (908) 981-8745 Investor Relations George Grofik Tel: +33 (0)1 53 77 45 45 |