Columbia subject headings:
Harvard subject headings:
Cyclic nucleotides--Physiological effect--Periodicals.
Cyclic nucleotides.
Phosphoproteins--Physiological effect--Periodicals.
Phosphorylation.
Proteins--Metabolism
Princeton subject headings:
Cyclic nucleotides--Periodicals.
Phosphorylation--Periodicals.
Proteins--Metabolism--Periodicals.