Columbia subject headings:
Fetus--Abnormalities--Congresses.
Fetus--Abnormalities--Diagnosis--Congresses.
Fetus--Diseases--Congresses.
Fetus--Diseases--Diagnosis--Congresses.
Fetus--Effect of drugs on--Congresses.
Fetus--Growth--Congresses.
Obstetrical pharmacology--Congresses.
Pregnancy--Complications--Congresses.
Harvard subject headings:
Fetus--Abnormalities--Congresses
Fetus--Abnormalities--Diagnosis--Congresses
Fetus--Diseases--Congresses
Fetus--Diseases--Diagnosis--Congresses.
Fetus--Effect of drugs on--Congresses
Fetus--Growth--Congresses.
Obstetrical pharmacology--Congresses.
Pregnancy--Complications--Congresses
Princeton subject headings: