Columbia subject headings:
Biology--Study and teaching (Graduate)--United States--Evaluation.
Universities and colleges--United States--Graduate work--Evaluation.
Harvard subject headings:
Biology--Research--United States--Evaluation.
Biology--Study and teaching (Higher)--United States--Evaluation.
Doctor of philosophy degree--United States--Evaluation.
United States
Princeton subject headings:
Biology--Research--United States--Evaluation.
Doctor of philosophy degree--United States--Evaluation.
Life sciences--Study and teaching (Higher)--United States--Evaluation.