PMC4083033 erratum minimal diff

PMC4083033 勘误的最小差分

来源：PMC4083033（Erratum: Corrected Sentence）

原句：
"In detail, female skin was thicker than those of males, which is consistent to many other previous studies [3,15,20]"

更正句：
"In detail, men have thicker skin than do women, which is consistent to many other previous studies [3,15,20]."

判定

这是替换 / rewrite 型勘误，不是插入型：
- 主语与语义反转：''female skin was thicker than those of males'' → ''men have thicker skin than do women''
- 动词结构整体重写：''was thicker than those of males'' → ''have thicker skin than do women''
- 末尾补了句号

可复现的最小判定

用词级差分（Python difflib.ndiff）可见：
- 删除了：female / was / thicker / those of / males
- 新增了：men / have / thicker / do / women
- 保留骨架：In detail, skin than which is consistent to many other previous studies [3,15,20]

结论：该勘误属于语义级替换，不能归为单纯插入。