Funding for this research was provided by:
National Natural Science Foundation of China (71532007, 71131006, 71172197)
Sichuan University (skqy201411)
Text and Data Mining valid from 2018-06-15
Received: 6 March 2017
Accepted: 6 June 2018
First Online: 15 June 2018
Ethics approval and consent to participate
: This work focuses on using statistical data about daily operations in a radiology department, with the approval of the head of the radiology department. Both the way we obtained the data and the aim of this study conform to the relevant regulations of WCH. We do not use any direct data extracted from individual patients. The need for ethics approval was therefore waived.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.