title: Erratum to: Different site, different clinical outcomes in perforated colorectal cancer?
authors.affiliation: Affiliated Hospital of Qingdao University, Qingdao, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Song
authors.affiliation: Affiliated Hospital of Qingdao University, Qingdao, China.
authors.forename: Kaiqiang
authors.initials: K
authors.lastname: Qin
authors.affiliation: Affiliated Hospital of Qingdao University, Qingdao, China.
authors.forename: Xiaona
authors.initials: X
authors.lastname: Chu
authors.affiliation: Affiliated Hospital of Qingdao University, Qingdao, China. worldwidth@aliyun.com.
authors.forename: Shikuan
authors.initials: S
authors.lastname: Li