類型: 連結
作者: Joyce Frieden
出處: MedPage Today
連結: https://www.medpagetoday.com/infectiousdisease/covid19vaccine/92894
Biden Pushes Month-Long Effort to Meet 70% Vaccination Goal

類型: 連結
作者: Joyce Frieden
出處: MedPage Today
連結: https://www.medpagetoday.com/infectiousdisease/covid19vaccine/92894