Article History
Received: 13 March 2018
Accepted: 4 September 2019
First Online: 13 November 2019
Compliance with Ethical Standards
:
: Authors Bashir Isa Dodo, Yongmin Li, Khalid Eltayef and Xiaohui Liu declare there is no conflict of interest for this research work.
: The dataset was collected at Tongren Hospital, Beijing, China. The data collection was undertaken in accordance with the organisation’s research ethics regulations and was approved by the local ethics committee.