Columbia subject headings:
Medicine--Japan--History--19th century.
Ogata, Kōan, 1810-1863.
Tekijuku.
Harvard subject headings:
Ogata, Kōan, 1810-1863
Physicians--Japan--Biography
Tekijuku--Students--Biography.
Princeton subject headings:
Medicine--Japan--History--19th century.
Ogata, Kōan, 1810-1863.