Submitted on: 19 December 1998.
Revised on: 16 March 1999.
Accepted on: 06 May 1999.
___________________JOURNAL OF THE ROYAL SOCIETY OF MEDICINE
http://reply.papertrans.cn/2/199/19847/19847-32.png
Submitted on: 02 February 2010.
Revised on: 01 March 2010.
Accepted on: 04 April 2010.
___________________JOURNAL OF THE ROYAL SOCIETY OF MEDICINE
http://reply.papertrans.cn/2/199/19847/19847-34.png
Submitted on: 16 July 2018.
Revised on: 08 September 2018.
Accepted on: 05 November 2018.
___________________JOURNAL OF THE ROYAL SOCIETY OF MEDICINE
Submitted on: 20 April 2015.
Revised on: 11 July 2015.
Accepted on: 19 August 2015.
___________________JOURNAL OF THE ROYAL SOCIETY OF MEDICINE