Socioeconomic inequalities in cancer incidence and access to health services among children and adolescents in China: a cross-sectional study

Xin Ni, Zhe Li, Xinping Li, Xiao Zhang, Guoliang Bai, Yingying Liu, Rongshou Zheng, Yawei Zhang, Xin Xu, Yuanhu Liu, Chenguang Jia, Huanmin Wang, Xiaoli Ma, Huyong Zheng, Yan Su, Ming Ge, Qi Zeng, Shengcai Wang, Junyang Zhao, Yueping Zeng, Guoshuang Feng, Yue Xi, Zhuo Deng, Yongli Guo, Zhuoyu Yang, Jinzhe Zhang