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von Ammon, Klaus; Frei-Erb, Martin; Cardini, F.; Daig, Ute; Dragan, S; Hegyi, G.; Roberti di Sarsina, P.; Sörensen, J.; Lewith, G. (2012). Complementary and Alternative Medicine Provision in Europe - First Results Approaching Reality in an Unclear Field of Practices. Forschende Komplementärmedizin, 19(suppl. 2), pp. 37-43. Basel: Karger 10.1159/000343129
