Columbia subject headings:
Harvard subject headings:
Ionizing radiation--Dosage--United States.
Radiation dosimetry.
Radiation workers--Diseases--United States.
Radiation--Safety measures
Radiation--Safety measures--United States.
Radiation--Safety regulations--United States
Princeton subject headings:
Ionizing radiation--Dosage--United States.
Radiation dosimetry.
Radiation workers--Diseases--United States.
Radiation--Safety measures--United States.