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. Author manuscript; available in PMC: 2007 Nov 7.
Published in final edited form as: JAMA. 2005 Jul 6;294(1):81–90. doi: 10.1001/jama.294.1.81

Figure 4. Association of arginine bioavailability ratios with mortality in sickle cell disease: Kaplan-Meier survival plots.

Figure 4

A. Survival for three categories of Arginine-to-Ornithine ratio: “High” = upper quartile, > 0.8690; “Medium” = 25th to 75th percentiles, > 0.4385 and ≤ 0.8690; “Low” = lower quartile, ≤ 0.4385. B. Survival for three categories of Arginine-to-(Ornithine + Citrulline) ratio: “High” = upper quartile, > 0.6254, “Medium” = 25th to 75th percentiles, > 0.3245 and ≤ 0.6254, “Low” = lower quartile, ≤ 0.3245.

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