qT RETRACTION . _ TOT 068 00 © 000 os EXPOSED T SKIN err *2 CONTROLS o= COMBINED 4 (96) . o = EXPOSED 5 © = COMBINED & : . 18 TT I SKIN 2+ 40-— ‘ 2 * 50 60 70 80 TO 4 7 _ —3+ a a a+ = “4 Ho 1" 1fe Pr Liidititdititiililit | Nn a ry + + + — C ~ oma [s) PERCENT + * i 80 1 ; 5 o.0 6 3 o 8 o 6 TTTTQTETrTTTtrrrrrtrtittyt 0 om aa & 70 a+ 1 I 70 80 | T 4 BALDNESS $196) Ww | 60 i3 “ . if NY PERCENT a 66SEC Figure 19. T 50 ocoEEEC oo a 07 Figure 18. Lore 30 o AGE (YEARS) ez EXPOSED #= CONTROLS O= COMBINED 1 40 oe AGE (YEARS) 7 80 7 [96/ o= EXPOSED BALONESS oo” 196: 100 70 GRAYNESS a+ *= CONTROLS 3: COMBINED L T HAIR 3+ 60 I 60 T_T CHANGES I96I a 40 50 Figure 17. #= CONTROLS Oo = COMBINE Di 390 40 L Figure 16. oo te 30 1 AGE (YEARS) c= EXPOSED BOL PERCENT 80 ! AGE (YEARS) if SENILE 100 90 TO 4 23 PERCENT I 60 7 = in | 50 Pitlisilist Lpitit! lire, > 40 t 30 33 4 —28 PERCENT 67.5 PERCENT LOOSENESS * = CONTROLS SEC 100 TT T I96I (MM) y SKIN Oo | be Nm + Vv th uw © : T 44+ o= EXPOSED - «= CONTROLS a 0 2 COMBINED i | 43+ LC am = = b . e+ = a | aed 4 i+ — a a C 2 30 40 i 50 . L AGE (YEARS) 60 70 AGE (YEARS) Figure 20. Figure 21. . 80 7 0

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