Columbia subject headings:
Enzymes--Congresses.
Erythrocytes--Congresses.
Pathology, Molecular--Congresses.
Harvard subject headings:
Enzymes--Congresses.
Erythrocytes--Congresses.
Pathology, Molecular--Congresses.
Princeton subject headings:
Enzymes--Congresses.
Erythrocytes--Congresses.
Pathology, Molecular--Congresses.