Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000895126-12-000053-index.html | 2012-02-24 17:08:38 | |
| 0000895126-12-000053.txt | 2012-02-24 17:08:38 | |
| chk02242012_8a.htm | 121367 | 2012-02-24 17:08:38 |
| chk02242012_ex42.htm | 164890 | 2012-02-24 17:08:38 |