Columbia subject headings:
Harvard subject headings:
Abdomen--Radiography--Safety measures.
Fetus--Effect of radiation on
Pelvis--Radiography--Safety measures.
Pregnant women--Radiography--Safety measures.
Princeton subject headings:
Abdomen--Radiography--Safety measures.
Fetus--Effect of radiation on.
Pelvis--Radiography--Safety measures.
Pregnant women--Radiography--Safety measures.