RT @Reuters: Pfizer, BioNTech propose expanding COVID-19 vaccine trial to 44,000 volunteers https://t.co/1pOKe8a7pc https://t.co/ND9RKXoFI3
RT @Reuters: Pfizer, Biontech propose expanding COVID-19 vaccine trial to 44,000 volunteers https://t.co/1pOKe8a7pc https://t.co/ND9RKXoFI3
Knowledge is a growing resource. If a thing’s worth doing, it’s worth doing well 一个国家的财富是它的学者 Medico con Fronteras. Maverick.
Knowledge is a growing resource. If a thing's worth doing, it's worth doing well 一个 国家 的 财富 是 它 的 学者 Medico con Fronteras. Maverick.