Ad26.COV2.S boosts antibody and T-cell responses following BNT162b2 vaccination. Issue 1 (1st January 2021) - Iketani, Sho; Liu, Lihong; Nair, Manoj S.; Chandrashekar, Abishek; Mohri, Hiroshi; Wang, Maple; Barouch, Dan H.; Huang, Yaoxing; Ho, David D.