Submitted on: 08 October 2011.
Revised on: 29 October 2011.
Accepted on: 14 November 2011.
Lancet Child & Adolescent Health
http://reply.papertrans.cn/3/205/20488/20488-12.png
Submitted on: 03 August 2020.
Revised on: 05 September 2020.
Accepted on: 29 September 2020.
Lancet Child & Adolescent Health
http://reply.papertrans.cn/3/205/20488/20488-14.png
http://reply.papertrans.cn/3/205/20488/20488-15.png
http://reply.papertrans.cn/3/205/20488/20488-16.png
http://reply.papertrans.cn/3/205/20488/20488-17.png
Submitted on: 22 January 2017.
Revised on: 13 February 2017.
Accepted on: 09 March 2017.
Lancet Child & Adolescent Health
http://reply.papertrans.cn/3/205/20488/20488-19.png
Submitted on: 16 April 2010.
Revised on: 25 May 2010.
Accepted on: 04 June 2010.
Lancet Child & Adolescent Health