CONTENTS Introduction... 2. Oc ccueeeeseeyccceatecvetcetie Gutteeveecistetteeeeretecetenerees Summary ofPast Findings...0.0000000000 ccc eet ee eee eect Penetrating Irradiation..00000..000.00.00cccc eects oe cette ert tt et te tte ter teenie Beta Irradiation of the Skin......0....00000c cocci ccc eeeete tee ttneeeeeerctees Internal Irradiation... cece Sette entetteerrttten tetas Other Studies... cee eee cece cece b be eeeeesecseeeseeeetieeetteesneersees Difficulties Associated With the Examinations...00000000000000.00c cece Comparison Populations.......00.0.000000 cocci e ee ett ttt et teteteetneres 6 1961 Survey — Organization and Procedures.....0..0..0000.000ccc ccc tttttteeeeeeee Examination Facilities...0.0.00000000000.. Seve edetted trates crsettiteettetetteteees 7 History and Physical Examinations....00..00.000.000000000cccccceeceeeeesteeceeessceetenenes 10 Cancer Detection Survey. ....00.00 occ ce centre er ecteneeenteeeteeeneenees 10 Growth and DevelopmentStudies in Children... eee 11 Aging Studies... cece cette nec enee cies beetetesctreuitevneeseienenteeneeess 11 Dental Survey... cece cece eects ect cn recs ce be sennettnesteeeecenegensteeteeeneeneey ‘12 Laboratory Procedures. ........00....0005.6c ccc cee cece csce ee cseeecet sete eeeecieeeessseeeenteenieeens 12 Radionuclide Body Burden Evaluation........0...000.0000.0cceieeeee 12 lil