Columbia subject headings:
Cytology--Periodicals.
Immunology--Periodicals.
Medical microbiology--Periodicals.
Pathology, Experimental--Periodicals.
Harvard subject headings:
Cytology--Periodicals
Immunology--Periodicals
Medical microbiology--Periodicals
Pathology, Experimental--Periodicals.
Princeton subject headings:
Cytology--Periodicals.
Immunology--Periodicals.
Medical microbiology--Periodicals.
Pathology, Experimental--Periodicals.
Periodicals.