Submitted on: 02 March 2009.
Revised on: 28 March 2009.
Accepted on: 08 April 2009.
Pflege
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Submitted on: 17 January 2001.
Revised on: 05 February 2001.
Accepted on: 03 March 2001.
Pflege
Submitted on: 27 January 2003.
Revised on: 22 February 2003.
Accepted on: 28 February 2003.
Pflege---HOGREFE AG-HOGREFE AG SUISSE
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Submitted on: 30 November 2018.
Revised on: 10 December 2018.
Accepted on: 24 December 2018.
Pflege---HOGREFE AG-HOGREFE AG SUISSE