Columbia subject headings:
Harvard subject headings:
Biographies
Educators--Korea--Biography
O, Kŭng-sŏn, 1878-1963
Physicians--Korea--Biography.
Princeton subject headings:
Biographies.
Educators--Korea--Biography.
Medicine--Korea--History--20th century.
O, Kŭng-sŏn, 1878-1963.
Physicians--Korea--Biography.