Swiss Study Group for Complementary and Alternative Methods in Cancer, SCAC (). „Hamer's 'New Medicine'”(PDF). Swiss Cancer League. Arhivat din original(PDF) la . Accesat în .
Swiss Study Group for Complementary and Alternative Methods in Cancer, SCAC (). „Hamer's 'New Medicine'”(PDF). Swiss Cancer League. Arhivat din original(PDF) la . Accesat în .