▁popular ▁hard ▁rock ▁bands ▁and ▁as ▁many ▁as ▁ 8 8 , 0 0 0 ▁fans . ▁ ▁WM MS ▁spons ored ▁the ▁concert s . ▁ ▁Att endance ▁was ▁by ▁general ▁ad mission . ▁ ▁Con cert go ers ▁occasionally ▁fell ▁– ▁or ▁jump ed ▁– ▁off ▁the ▁ste ep ▁stad ium ▁upper ▁deck ▁onto ▁the ▁concrete ▁se ating ▁area ▁far ▁below , ▁causing ▁serious ▁injury . ▁ ▁The ▁Cleveland ▁Free ▁C lin ic ▁staff ed ▁aid ▁stations ▁in ▁the ▁stad ium ▁with ▁phys icians , ▁n urs es ▁and ▁other ▁volunte ers , ▁and ▁through ▁ 1 9 7 7 , ▁made ▁its ▁treatment ▁statistics ▁public . ▁ ▁From ▁ 1 9 7 8 ▁on , ▁Bel kin ▁Produ ctions ▁condition ed ▁its ▁fund ing ▁of ▁the ▁Free ▁C lin ic ▁on ▁the ▁n ond is closure ▁of ▁the ▁number ▁of ▁C lin ic ▁staff ▁on ▁duty ▁at ▁the ▁concert s , ▁the ▁nature ▁of ▁conditions ▁treated ▁and ▁the ▁number ▁of ▁patients ▁treated . ▁ ▁Rock ▁Fort y ▁and ▁the ▁Rock ▁Hall ▁WM MS ▁was ▁directly ▁influenced ▁by ▁then ▁and ▁current ▁sister ▁station ▁W HT Z / New ▁York ▁( Z 1 0 0 ), ▁which ▁rose ▁to ▁the ▁top ▁of ▁the ▁ratings ▁books ▁immediately ▁after ▁installing ▁a ▁contemporary ▁hit ▁radio ▁( CH R ) ▁format . ▁Among ▁the ▁more ▁significant ▁moves ▁taken ▁by ▁WM MS ▁was ▁the ▁formatting ▁of ▁the ▁morning ▁zoo ▁concept ▁created ▁by ▁Z 1 0 0 ' s ▁Scott ▁Sh annon ▁onto ▁the ▁show ▁Jeff ▁& ▁Flash