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Original Diagram of The Middle-Range Theory of Unpleasant SymptomsFrom “The Middle-Range Theory of Unpleasant Symptoms: An Update,” by E.R. Lenz, L.C. Pugh, R.A. Milligan, A. Gift, & F. Suppe, 1997, Advances in Nursing Science, 19(3), pp. 14-27.
Updated Version of The Middle-Range Theory of Unpleasant Symptoms From “The Middle-Range Theory of Unpleasant Symptoms: An Update,” by E.R. Lenz, L.C. Pugh, R.A. Milligan, A. Gift, & F. Suppe, 1997, Advances in Nursing Science, 19(3), pp. 14-27.