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2. Risici og bivirkninger ved akupunkturbehandling. (Risks and adverse effects of acupuncture therapy.);Roested;Ugeskr Laeger,1994
3. Akupunktur als Todesursache;Brettel;Munch Med Wochenschr,1981
4. Aj Norheim, V. Fønnebø, Acupuncture adverse effects are more than occasional case reports: results from questionnaires among 1135 randomly selected Norwegian doctors and 197 acupuncturists, Complementary Ther Med ((in press)).