Funding for this research was provided by:
China Medical Board (16-262)
Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education (JOF201704)
Key Laboratory of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University (2017LSDMIS08)
Article History
Received: 2 March 2017
Accepted: 20 March 2019
First Online: 28 June 2019