Columbia subject headings:
Hair manifestations of general diseases--Congresses.
Hair--Diseases--Congresses.
Indicators (Biology)--Congresses.
Harvard subject headings:
Hair manifestations of general diseases--Congresses.
Hair--Analysis--Congresses.
Hair--Congresses.
Hair--Diseases--Congresses.
Indicators (Biology)--Congresses
Trace elements--Analysis--Congresses.
Princeton subject headings: