Cost-effectiveness of total knee arthroplasty vs nonoperative management in normal, overweight, obese, severely obese, morbidly obese, and super-obese patients: a markov model - Ponnusamy, K E; Vasarhelyi, E M; Somerville, L; McCalden, R W; Marsh, J D (J Arthroplasty, 2018)
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