Iter-4360dd15-0144-fact-BOLERO-2-erratum-word-alignment-context

PMC4713958 修正句与原文摘要的词级对齐（删除边界前后各 20 词）

结论

BOLERO-2 勘误（PMC4713958）在摘要中的改动仍然是 单一删除：删除了从 ''patients'' 到 ''therapy,'' 的 13 个词；前后疗效数值、HR、P 值与其他上下文均未变化。

词级对齐表（删除段落）

| 原文词序 | 原文词 | 修正句对应 | 备注 |
| 76 | patients | — | deleted |
| 77 | with | — | deleted |
| 78 | recurrence | — | deleted |
| 79 | during | — | deleted |
| 80 | or | — | deleted |
| 81 | within | — | deleted |
| 82 | 12 | — | deleted |
| 83 | months | — | deleted |
| 84 | of | — | deleted |
| 85 | completion | — | deleted |
| 86 | of | — | deleted |
| 87 | adjuvant | — | deleted |
| 88 | therapy, | — | deleted |

删除边界前后 20 词（原文/修正句相同处已省略重复）

原文删除前 20 词：
''0.31–0.48); log-rank P < 0.0001] in the overall population and in all prospectively defined subgroups, including patients with visceral metastases,''

原文删除后 20 词：
''and irrespective of age.''

修正句删除前 20 词：
''0.31–0.48); log-rank P < 0.0001] in the overall population and in all prospectively defined subgroups, including patients with visceral metastases,''

修正句删除后 20 词：
''and irrespective of age.''

机器复核摘要

- 原文词数：92
- 修正句词数：79
- 最长公共前缀：75 词
- 最长公共后缀：4 词
- 删除长度：13 词
- 重建校验：True

批判性备注

此对齐依赖空格分词；它足以证明 摘要修正是删句而非改数值，但并不适合作为句法级或标点级精校的唯一证据。若后续要做自动批量勘误核验，需要改用更稳健的 tokenization + diff 方案。