By Ritter Sabine   Jordan Peter   in International Commerce Review

ISSN:1864-5739|8|1|72-78

Springer Publishing Company ‎(2008)‎

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By Ritter Sabine   Willand L.   Reinhard B.   Offergeld R.   Hamouda O.   in Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz

ISSN:1436-9990|51|8|915-925

Springer Publishing Company ‎(2008)‎

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