Columbia subject headings:
Cross infection--Prevention--Handbooks, manuals, etc.
Health facilities--Sanitation--Handbooks, manuals, etc.
Nosocomial infections--Prevention--Handbooks, manuals, etc.
Harvard subject headings:
Cross infection--Prevention--Handbooks, manuals, etc.
Health facilities--Sanitation--Handbooks, manuals, etc.
Nosocomial infections--Prevention--Handbooks, manuals, etc.
Princeton subject headings: