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| 0000895126-08-000249-index.html | 2008-05-29 17:09:44 | |
| 0000895126-08-000249.txt | 2008-05-29 17:09:44 | |
| chk05282008_8k.htm | 50009 | 2008-05-29 17:09:44 |
| chk05282008_ex41.htm | 603696 | 2008-05-29 17:09:44 |
| chk05282008_ex42.htm | 994229 | 2008-05-29 17:09:44 |
| chk05282008_ex51.htm | 11019 | 2008-05-29 17:09:44 |
| chk05282008_ex52.htm | 10990 | 2008-05-29 17:09:44 |
| chk05282008_ex53.htm | 10569 | 2008-05-29 17:09:44 |