1. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China.
2. Department of Respiratory Medicine, First People's Hospital of Yunnan Province, Kunming, China.
Recebido: 15 julho 2016.
Aprovado: 26 fevereiro 2017.
Trabalho realizado na Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China.
Endereço para correspondência:
Ma Lei. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Xinzi Building, room 109, Kunming, Yunnan, China.
Tel.: 86 13208809503. E-mail: roy_murray@qq.com
Apoio financeiro: Nenhum.