Merck Research Laboratories & Beers, M. H. (2006). The Merck manual of diagnosis and therapy (18th ed.). Merck Research Laboratories.
Lua i Stíl Chicago (17ú heag.)Merck Research Laboratories agus Mark H. Beers. The Merck Manual of Diagnosis and Therapy. 18th ed. Whitehouse Station, N.J: Merck Research Laboratories, 2006.
Lua MLA (9ú heag.)Merck Research Laboratories agus Mark H. Beers. The Merck Manual of Diagnosis and Therapy. 18th ed. Merck Research Laboratories, 2006.
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