Swiss Study Group for Complementary and Alternative Methods in Cancer, SCAC (2001). „Hamer's 'New Medicine'”(PDF). Swiss Cancer League. Архивирано из оригинала(PDF) 23. 03. 2012. г. Приступљено 7. 5. 2011.
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Swiss Study Group for Complementary and Alternative Methods in Cancer, SCAC (2001). „Hamer's 'New Medicine'”(PDF). Swiss Cancer League. Архивирано из оригинала(PDF) 23. 03. 2012. г. Приступљено 7. 5. 2011.