TY - GEN AU - Conway,B J AU - Butler,P F AU - Duff,J E AU - Fewell,T R AU - Gross,R E AU - Jennings,R J AU - Koustenis,G H AU - McCrohan,J L AU - Rueter,F G AU - Showalter,C K TI - Beam quality independent attenuation phantom for estimating patient exposure from x-ray automatic exposure controlled chest examinations SN - 0094-2405 PY - 1985///0221 KW - Humans KW - Models, Structural KW - Quality Assurance, Health Care KW - Radiation Dosage KW - Radiography, Thoracic KW - methods N1 - Publication Type: Journal Article UR - https://doi.org/10.1118/1.595611 ER -