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| 1 hr | 2 hr | 3 hr | |
|---|---|---|---|
| Number of examined items | 11 | 11 | 11 |
| Number of recovered items | 3 | 7 | 5 |
| Recovery rate | 0.27 | 0.64 | 0.45 |
The recovery rate was 0.27 (3/11) at 1 hr, 0.64 (7/11) at 2 hr, and 0.45 (5/11) at 3 hr. The authors generated this table using data from a table in a report by Matsuba and Shimamura [19].
