Smoothly clipped absolute deviation penalty technology based retrospective analysis of factors of preoperative lymph node metastasis in  patients with colorectal cancer
XING Wei, SUN Chi, ZOU Qiong-qiong, et al
上海交通大学学报（医学版） . 2015, (4): 545 .  DOI: 11.3969/j.issn.1674-8115.2015.04.015