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Lua i Stíl Chicago (17ú heag.)Berkow, Robert, Mark H. Beers, agus Andrew J. Fletcher. The Merck Manual of Diagnosis and Therapy. Rahway, N. J: Merck Research laboratories, 1996.
Lua MLA (8ú heag.)Berkow, Robert, et al. The Merck Manual of Diagnosis and Therapy. Merck Research laboratories, 1996.
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