All Nations Must Prioritize the COVID-19 Vaccination Program for Elderly Adults Urgently Published on 2021-06-012022-10-28 Journal: Aging and Disease [키워드] COVID-19 elderly must nation Program [저자] Chiranjib Chakraborty, Ashish Ranjan Sharma, Manojit Bhattacharya, Govindasamy Agoramoorthy, Sang-Soo Lee [Category] COVID-19, PMC URL [DOI] 10.14336/AD.2021.0426 [Article Type] Letter to the Editor [Source] PMC All Keywords 【제목키워드】 COVID-19, elderly, Program, nation, must,