TY - JOUR T1 - Bivalent COVID jabs given 4 months after last shot JF - Philippine Star A1 - Villanueva, Rhodina LA - English YR - 2023 UL - https://tuklas.up.edu.ph/Record/IPN-00000936345 KW - COVID-19 vaccines KW - Booster vaccines KW - COVID-19 ER -