³í¹®) COVID-19 Vaccination Rates in Patients With Chronic Medical ConditionsA Nationwide Cross-Sectional Study. °í·Á´ë ±¸·Îº´¿ø °¨¿°³»°ú Á¤ÈñÁø ±³¼ö(»çÁø ñ§) ¿¬±¸ÆÀ(³²¿¤¸®¿¤ ±³¼ö éÓ)