Columbia subject headings:
Tuberculosis--Hospitals--Netherlands.
Harvard subject headings:
Architects--Netherlands.
Architecture, Modern--20th century--Netherlands--Hilversum.
Duiker, Johannes.
Hilversum (Netherlands)--Buildings, structures, etc.
Sanatorium Zonnestraal (Hilversum, Netherlands)
Sanatoriums--Netherlands--Hilversum.
Princeton subject headings: