Organizers：

• Zaiyi Liu, Guangdong Provincial People's Hospital, China
• Chu Han, Guangdong Provincial People's Hospital, China
• Chunming Li, University of Electronic Science and Technology of China, China
• Huihua Yang, Beijing University of Posts and Telecommunications, China
• Qingling Zhang, Guangdong Provincial People's Hospital, China
• Jinhai Mai, South China University of Technology, China
• Huan Lin, Guangdong Provincial People's Hospital, China
• Xipeng Pan, Guangdong Provincial People's Hospital, China
• Changhong Liang, Guangdong Provincial People's Hospital, China
• Xin Chen, Guangzhou First People's Hospital, China
• Zhenwei Shi, Guangdong Provincial People's Hospital, China

Acknowledgements:

We would like to thank all the people who helped in this challenge.

• Data preparation: Zeyan Xu, Xiaomei Huang, Pinxiong Li, Xiaorui Han, Lei Wu
• Junior labelers: Yuan Zhang, Huihui Wang, Chao Zhu, Yuchen Song, Huasheng Yao, Yumeng Wang, Ke Zhao, Mengyi Dong, Jia Huang, Yingyi Wang
• Senior labelers: BingBing Li, Shanshan Lv, Huan Lin
• Expert pathologists: Lixu Yan, Su Yao
• Challenge website: Jinhai Mai, Jiaming Peng