Columbia subject headings:
Leprosy--France.
Montreuil (Pas-de-Calais, France). Maladrerie du Val.
Harvard subject headings:
Hospitals--France--Pas-de-Calais--History.
Leprosy--Hospitals--France--Pas-de-Calais--History.
Maladrerie du Val (Montreuil, Pas-de-Calais, France)
Montreuil (Pas-de-Calais, France)
Princeton subject headings:
Leprosy--France.
Montreuil-sur-Mer, France. Maladrerie du Val.