00517nam a2200121Ia 4500008004100000245015700041260003100198260000900229300000900238650002600247650001200273856011000285170516s9999 xx 000 0 und d aEvaluation of external beam hardening filters on image quality of computed tomography and single photon emission computed tomography/computed tomography bJournal of Medical Physics c2015 a40:4 xRadiologic Technology xRadtech uhttp://www.jmp.org.in/showBackIssue.asp?issn=0971-6203;year=2015;volume=40;issue=4;month=October-December