Apart from geographical scope, some historians including Kasahara deny that the massacre ended in early February and instead put the end date at March 28, though such a long time range is disputed by other historians.
除了地理范围外，笠原等历史学家否认大屠杀在2月初结束，而把结束日期定为3月28日，但这么长的时间范围受到了其他历史学家的反对。