Submitted on: 05 March 2012.
Revised on: 27 March 2012.
Accepted on: 11 April 2012.
Travel Medicine and Infectious Disease
Submitted on: 10 April 2016.
Revised on: 20 April 2016.
Accepted on: 27 April 2016.
Travel Medicine and Infectious Disease
http://reply.papertrans.cn/3/300/29904/29904-13.png
http://reply.papertrans.cn/3/300/29904/29904-14.png
Submitted on: 11 December 2010.
Revised on: 20 January 2011.
Accepted on: 02 February 2011.
Travel Medicine and Infectious Disease
Submitted on: 18 October 2004.
Revised on: 13 November 2004.
Accepted on: 20 November 2004.
Travel Medicine and Infectious Disease
Submitted on: 30 November 2017.
Revised on: 28 December 2017.
Accepted on: 18 January 2018.
Travel Medicine and Infectious Disease
http://reply.papertrans.cn/3/300/29904/29904-18.png
http://reply.papertrans.cn/3/300/29904/29904-19.png
http://reply.papertrans.cn/3/300/29904/29904-20.png