Retraction notice to "Silencing circular RNA hsa_circ_0000977 suppresses pancreatic ductal adenocarcinoma progression by stimulating miR-874-3p and inhibiting PLK1 expression" [Cancer Letters 422C (2018) 70-80]

Affiliations

• ¹ Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University/The Second School of Clinical Medicine, Southern Medical University, Industrial Road No.253, Guangzhou, Guangdong510280, China; Institute of Hepatopancreatobiliary, Surgery Southwest Hospital, Third Military Medical University (Army Medical University), 30 Gaotanyan Main Street, Shapingba District, Chongqing400038, China.
• ² Institute of Hepatopancreatobiliary, Surgery Southwest Hospital, Third Military Medical University (Army Medical University), 30 Gaotanyan Main Street, Shapingba District, Chongqing400038, China.
• ³ Gulliver Preparatory School, 6575 North Kendall Drive, Miami, FL, 33156, USA.
• ⁴ Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University/The Second School of Clinical Medicine, Southern Medical University, Industrial Road No.253, Guangzhou, Guangdong510280, China.