http://reply.papertrans.cn/3/254/25344/25344-21.png
Submitted on: 13 August 2009.
Revised on: 26 August 2009.
Accepted on: 01 September 2009.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
http://reply.papertrans.cn/3/254/25344/25344-23.png
Submitted on: 08 June 2015.
Revised on: 19 July 2015.
Accepted on: 29 July 2015.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Submitted on: 29 March 2016.
Revised on: 13 April 2016.
Accepted on: 22 April 2016.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Submitted on: 21 March 2015.
Revised on: 17 April 2015.
Accepted on: 25 April 2015.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Submitted on: 21 March 2012.
Revised on: 11 April 2012.
Accepted on: 23 April 2012.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
http://reply.papertrans.cn/3/254/25344/25344-28.png
Submitted on: 09 July 2010.
Revised on: 07 August 2010.
Accepted on: 04 September 2010.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
http://reply.papertrans.cn/3/254/25344/25344-30.png