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Submitted on: 13 October 2016.
Revised on: 23 November 2016.
Accepted on: 03 January 2017.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O
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Submitted on: 24 September 2019.
Revised on: 20 November 2019.
Accepted on: 03 December 2019.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O
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Submitted on: 08 October 2012.
Revised on: 26 January 2013.
Accepted on: 21 February 2013.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O
Submitted on: 09 April 2007.
Revised on: 10 May 2007.
Accepted on: 11 June 2007.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O
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Submitted on: 30 August 2007.
Revised on: 04 November 2007.
Accepted on: 25 November 2007.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O
Submitted on: 21 September 1998.
Revised on: 12 November 1998.
Accepted on: 16 December 1998.
___________________Journal of Causal Inference---DE GRUYTER POLAND SP Z O O