Submitted on: 04 July 2008.
Revised on: 20 October 2008.
Accepted on: 08 December 2008.
___________________Indian Journal of Public Health
Submitted on: 05 December 2021.
Revised on: 17 March 2022.
Accepted on: 04 May 2022.
___________________Indian Journal of Public Health
Submitted on: 02 June 2011.
Revised on: 08 September 2011.
Accepted on: 29 September 2011.
___________________Indian Journal of Public Health
Submitted on: 22 August 2022.
Revised on: 01 November 2022.
Accepted on: 22 December 2022.
___________________Indian Journal of Public Health
Submitted on: 08 May 1999.
Revised on: 31 July 1999.
Accepted on: 26 August 1999.
___________________Indian Journal of Public Health
http://reply.papertrans.cn/2/125/12408/12408-26.png
http://reply.papertrans.cn/2/125/12408/12408-27.png
Submitted on: 19 June 2010.
Revised on: 07 October 2010.
Accepted on: 19 November 2010.
___________________Indian Journal of Public Health
Submitted on: 04 February 1998.
Revised on: 17 May 1998.
Accepted on: 23 June 1998.
___________________Indian Journal of Public Health
http://reply.papertrans.cn/2/125/12408/12408-30.png