http://reply.papertrans.cn/2/200/19995/19995-31.png
http://reply.papertrans.cn/2/200/19995/19995-32.png
Submitted on: 04 August 2006.
Revised on: 17 November 2006.
Accepted on: 12 December 2006.
___________________JOURNAL OF TRAVEL MEDICINE---OXFORD UNIV PRESS INC
Submitted on: 05 January 2006.
Revised on: 06 March 2006.
Accepted on: 28 April 2006.
___________________JOURNAL OF TRAVEL MEDICINE---OXFORD UNIV PRESS INC
Submitted on: 09 June 2022.
Revised on: 29 September 2022.
Accepted on: 12 October 2022.
___________________JOURNAL OF TRAVEL MEDICINE---OXFORD UNIV PRESS INC
http://reply.papertrans.cn/2/200/19995/19995-36.png