你可以帮我把这下面这段话翻译成英文么：作者在纳入标配中认为如果一位患者的肝脏有多个病变那么应该选择最大的病变进行研究。我认为这是有争议。因为作者无法确认其他较小的病灶是否属于转移灶而转移灶是肿瘤具有侵袭性的重要证据之一。

The author believes that if a patient has multiple lesions in the liver, the largest lesion should be selected for research. I think this is controversial because the author cannot confirm whether the smaller lesions are metastases, and metastasis is an important evidence of tumor invasiveness.