Columbia subject headings:
Antibiotics--History.
Brown, Rachel, 1898-1980.
Hazen, Elizabeth Lee, 1885 or 1888-1975.
Microbiologists--United States--Biography.
Nystatin--History.
Harvard subject headings:
Antibiotics--History.
Brown, Rachel
Brown, Rachel, 1898-1980
Chemists--United States--Biography
Hazen, Elizabeth Lee, 1885 or 1888-1975
Microbiologists--United States--Biography.
Nystatin--History.
Women microbiologists--United States--Biography.
Princeton subject headings:
Antibiotics--History.
Brown, Rachel, 1898-1980.
Hazen, Elizabeth Lee, 1885 or 1888-1975.
Microbiologists--United States--Biography.
Nystatin--History.